diff --git a/eslint.config.mjs b/eslint.config.mjs
index e16a18e414..fce7e8c86a 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -1,3 +1,5 @@
+import { builtinModules } from 'node:module';
+
 import eslint from '@eslint/js';
 import { defineConfig } from 'eslint/config';
 import eslintConfigPrettier from 'eslint-config-prettier/flat';
@@ -8,10 +10,13 @@ import simpleImportSortPlugin from 'eslint-plugin-simple-import-sort';
 import eslintPluginUnicorn from 'eslint-plugin-unicorn';
 import globals from 'globals';
 import tseslint from 'typescript-eslint';
+
 export default defineConfig([
+  // https://typescript-eslint.io/getting-started#additional-configs
   eslint.configs.recommended,
   tseslint.configs.strict,
   tseslint.configs.stylistic,
+  // Unicorn section
   eslintPluginUnicorn.configs.unopinionated,
   {
     rules: {
@@ -48,6 +53,7 @@ export default defineConfig([
       'unicorn/prefer-switch': 'off', // TODO: delete me
     },
   },
+  // Playwright section
   {
     ...playwright.configs['flat/recommended'],
     files: ['packages/insomnia-smoke-test/tests/**/*.ts'],
@@ -62,7 +68,22 @@ export default defineConfig([
       'playwright/no-wait-for-timeout': 'error',
     },
   },
-
+  // nodeIntegration: false section
+  {
+    files: [
+      'packages/insomnia/src/ui/**/*.{ts,tsx}',
+      // TODO: 'packages/insomnia/src/common/**/*.{ts,tsx}',
+    ],
+    rules: {
+      'no-restricted-imports': [
+        'error',
+        {
+          paths: builtinModules.map(m => `node:${m}`),
+        },
+      ],
+    },
+  },
+  // React hooks section
   {
     files: ['packages/insomnia/src/**/*.{ts,tsx}'],
     plugins: { 'react-hooks': reactHooksPlugin },
@@ -75,6 +96,7 @@ export default defineConfig([
       'react-hooks/incompatible-library': 'off', //TODO(use react-aria virtualizer): delete me
     },
   },
+  // React section
   {
     files: ['packages/insomnia/src/**/*.{ts,tsx}'],
     ...reactPlugin.configs.flat.recommended,
@@ -111,6 +133,7 @@ export default defineConfig([
       'react/no-array-index-key': 'error',
     },
   },
+  // simple-import-sort section
   {
     plugins: {
       'simple-import-sort': simpleImportSortPlugin,
@@ -119,6 +142,7 @@ export default defineConfig([
       'simple-import-sort/imports': 'error',
     },
   },
+  // General ESLint rules
   {
     rules: {
       'no-restricted-imports': [
@@ -148,6 +172,7 @@ export default defineConfig([
       'no-useless-escape': 'off', // TODO: delete me
     },
   },
+  // TypeScript ESLint rules
   {
     rules: {
       '@typescript-eslint/array-type': ['error', { default: 'array', readonly: 'array' }],
diff --git a/packages/insomnia/src/entry.main.ts b/packages/insomnia/src/entry.main.ts
index 62a948c7c1..ff7bd1122c 100644
--- a/packages/insomnia/src/entry.main.ts
+++ b/packages/insomnia/src/entry.main.ts
@@ -7,6 +7,7 @@ import contextMenu from 'electron-context-menu';
 import installExtension, { REACT_DEVELOPER_TOOLS } from 'electron-devtools-installer';
 import { configureFetch } from 'insomnia-api';
 
+import { registerPathHandlers } from '~/main/ipc/path';
 import { registerLLMConfigServiceAPI } from '~/main/llm-config-service';
 import { insomniaFetch } from '~/ui/insomnia-fetch';
 
@@ -75,6 +76,7 @@ app.on('ready', async () => {
   registerElectronHandlers();
   // @TODO - Maybe move the register stuff in the registerMainHandlers function
   registerMainHandlers();
+  registerPathHandlers();
   registergRPCHandlers();
   registerGitServiceAPI();
   registerLLMConfigServiceAPI();
diff --git a/packages/insomnia/src/entry.preload.ts b/packages/insomnia/src/entry.preload.ts
index 0d58669a87..ebe6188508 100644
--- a/packages/insomnia/src/entry.preload.ts
+++ b/packages/insomnia/src/entry.preload.ts
@@ -181,6 +181,7 @@ const main: Window['main'] = {
   onDefaultBrowserOAuthRedirect: options => ipcRenderer.invoke('onDefaultBrowserOAuthRedirect', options),
   cancelAuthorizationInDefaultBrowser: options => ipcRenderer.invoke('cancelAuthorizationInDefaultBrowser', options),
   setMenuBarVisibility: options => ipcRenderer.send('setMenuBarVisibility', options),
+  multipartBufferToArray: options => ipcRenderer.invoke('multipartBufferToArray', options),
   installPlugin: (lookupName: string, allowScopedPackageNames = false) =>
     ipcRenderer.invoke('installPlugin', lookupName, allowScopedPackageNames),
   curlRequest: options => ipcRenderer.invoke('curlRequest', options),
@@ -263,7 +264,12 @@ ipcRenderer.on('hidden-browser-window-response-listener', event => {
   ports.set('hiddenWindowPort', port);
   ipcRenderer.invoke('main-window-script-port-ready');
 });
-
+const path: Window['path'] = {
+  dirname: (p: string) => ipcRenderer.sendSync('path.dirname', p),
+  basename: (p: string) => ipcRenderer.sendSync('path.basename', p),
+  join: (...paths: string[]) => ipcRenderer.sendSync('path.join', ...paths),
+  resolve: (...paths: string[]) => ipcRenderer.sendSync('path.resolve', ...paths),
+};
 const dialog: Window['dialog'] = {
   showOpenDialog: options => ipcRenderer.invoke('showOpenDialog', options),
   showSaveDialog: options => ipcRenderer.invoke('showSaveDialog', options),
@@ -291,6 +297,7 @@ if (process.contextIsolated) {
   contextBridge.exposeInMainWorld('shell', shell);
   contextBridge.exposeInMainWorld('clipboard', clipboard);
   contextBridge.exposeInMainWorld('webUtils', webUtils);
+  contextBridge.exposeInMainWorld('path', path);
 } else {
   window.main = main;
   window.dialog = dialog;
@@ -298,4 +305,5 @@ if (process.contextIsolated) {
   window.shell = shell;
   window.clipboard = clipboard;
   window.webUtils = webUtils;
+  window.path = path;
 }
diff --git a/packages/insomnia/src/main/ipc/electron.ts b/packages/insomnia/src/main/ipc/electron.ts
index 04fa9ca4d1..033fe85ba8 100644
--- a/packages/insomnia/src/main/ipc/electron.ts
+++ b/packages/insomnia/src/main/ipc/electron.ts
@@ -24,30 +24,30 @@ export type HandleChannels =
   | 'authorizeUserInWindow'
   | 'backup'
   | 'cancelAuthorizationInDefaultBrowser'
-  | 'generateMockRouteDataFromSpec'
-  | 'generateCommitsFromDiff'
   | 'curl.event.findMany'
   | 'curl.open'
   | 'curl.readyState'
   | 'curlRequest'
   | 'database.caCertificate.create'
   | 'extractJsonFileFromPostmanDataDumpArchive'
+  | 'generateCommitsFromDiff'
+  | 'generateMockRouteDataFromSpec'
   | 'getExecution'
   | 'getLocalStorageDataFromFileOrigin'
+  | 'git.abortMerge'
   | 'git.canPushLoader'
   | 'git.checkoutGitBranch'
   | 'git.cloneGitRepo'
   | 'git.commitAndPushToGitRepo'
   | 'git.commitToGitRepo'
-  | 'git.multipleCommitToGitRepo'
   | 'git.completeSignInToGitHub'
   | 'git.completeSignInToGitLab'
   | 'git.continueMerge'
   | 'git.createNewGitBranch'
   | 'git.deleteGitBranch'
+  | 'git.diff'
   | 'git.diffFileLoader'
   | 'git.discardChanges'
-  | 'git.abortMerge'
   | 'git.fetchGitRemoteBranches'
   | 'git.getGitBranches'
   | 'git.getGitHubRepositories'
@@ -57,13 +57,13 @@ export type HandleChannels =
   | 'git.gitFetchAction'
   | 'git.gitLogLoader'
   | 'git.gitStatus'
-  | 'git.diff'
   | 'git.initGitRepoClone'
   | 'git.initSignInToGitHub'
   | 'git.initSignInToGitLab'
   | 'git.loadGitRepository'
   | 'git.mergeGitBranch'
   | 'git.migrateLegacyInsomniaFolderToFile'
+  | 'git.multipleCommitToGitRepo'
   | 'git.pullFromGitRemote'
   | 'git.pushToGitRemote'
   | 'git.resetGitRepo'
@@ -74,33 +74,53 @@ export type HandleChannels =
   | 'git.updateGitRepo'
   | 'grpc.loadMethods'
   | 'grpc.loadMethodsFromReflection'
-  | 'installPlugin'
-  | 'lintSpec'
-  | 'llm.getActiveBackend'
-  | 'llm.setActiveBackend'
-  | 'llm.clearActiveBackend'
-  | 'llm.getBackendConfig'
-  | 'llm.updateBackendConfig'
-  | 'llm.getAllConfigurations'
-  | 'llm.getCurrentConfig'
-  | 'llm.getAIFeatureEnabled'
-  | 'llm.setAIFeatureEnabled'
-  | 'onDefaultBrowserOAuthRedirect'
-  | 'open-channel-to-hidden-browser-window'
-  | 'parseImport'
-  | 'openPath'
-  | 'readCurlResponse'
-  | 'readOrCreateDataDir'
-  | 'readDir'
   | 'insecureReadFile'
   | 'insecureReadFileWithEncoding'
-  | 'secureReadFile'
+  | 'installPlugin'
+  | 'lintSpec'
+  | 'llm.clearActiveBackend'
+  | 'llm.getActiveBackend'
+  | 'llm.getAIFeatureEnabled'
+  | 'llm.getAllConfigurations'
+  | 'llm.getBackendConfig'
+  | 'llm.getCurrentConfig'
+  | 'llm.setActiveBackend'
+  | 'llm.setAIFeatureEnabled'
+  | 'llm.updateBackendConfig'
+  | 'mcp.client.cancelRequest'
+  | 'mcp.client.hasRequestResponded'
+  | 'mcp.close'
+  | 'mcp.connect'
+  | 'mcp.event.findMany'
+  | 'mcp.event.findNotifications'
+  | 'mcp.event.findPendingEvents'
+  | 'mcp.notification.rootListChange'
+  | 'mcp.notification.rootListChange'
+  | 'mcp.primitive.callTool'
+  | 'mcp.primitive.getPrompt'
+  | 'mcp.primitive.listPrompts'
+  | 'mcp.primitive.listResources'
+  | 'mcp.primitive.listResourceTemplates'
+  | 'mcp.primitive.listTools'
+  | 'mcp.primitive.readResource'
+  | 'mcp.primitive.subscribeResource'
+  | 'mcp.primitive.unsubscribeResource'
+  | 'mcp.readyState'
+  | 'multipartBufferToArray'
+  | 'onDefaultBrowserOAuthRedirect'
+  | 'open-channel-to-hidden-browser-window'
+  | 'openPath'
+  | 'parseImport'
+  | 'readCurlResponse'
+  | 'readDir'
+  | 'readOrCreateDataDir'
   | 'restoreBackup'
   | 'secretStorage.decryptString'
   | 'secretStorage.deleteSecret'
   | 'secretStorage.encryptString'
   | 'secretStorage.getSecret'
   | 'secretStorage.setSecret'
+  | 'secureReadFile'
   | 'showOpenDialog'
   | 'showSaveDialog'
   | 'socketIO.event.findMany'
@@ -111,26 +131,7 @@ export type HandleChannels =
   | 'webSocket.event.send'
   | 'webSocket.open'
   | 'webSocket.readyState'
-  | 'writeFile'
-  | 'mcp.connect'
-  | 'mcp.primitive.listTools'
-  | 'mcp.primitive.callTool'
-  | 'mcp.primitive.listPrompts'
-  | 'mcp.primitive.getPrompt'
-  | 'mcp.primitive.listResources'
-  | 'mcp.primitive.listResourceTemplates'
-  | 'mcp.primitive.readResource'
-  | 'mcp.primitive.subscribeResource'
-  | 'mcp.primitive.unsubscribeResource'
-  | 'mcp.notification.rootListChange'
-  | 'mcp.readyState'
-  | 'mcp.event.findMany'
-  | 'mcp.event.findNotifications'
-  | 'mcp.event.findPendingEvents'
-  | 'mcp.notification.rootListChange'
-  | 'mcp.client.hasRequestResponded'
-  | 'mcp.client.cancelRequest'
-  | 'mcp.close';
+  | 'writeFile';
 
 export const ipcMainHandle = (
   channel: HandleChannels,
@@ -154,6 +155,10 @@ export type MainOnChannels =
   | 'manualUpdateCheck'
   | 'openDeepLink'
   | 'openInBrowser'
+  | 'path.basename'
+  | 'path.dirname'
+  | 'path.join'
+  | 'path.resolve'
   | 'readText'
   | 'restart'
   | 'set-hidden-window-busy-status'
@@ -220,6 +225,7 @@ const getTemplateValue = (arg: NunjucksParsedTagArg) => {
   }
   return arg.defaultValue;
 };
+
 export function registerElectronHandlers() {
   ipcMainOn(
     'show-nunjucks-context-menu',
diff --git a/packages/insomnia/src/main/ipc/main.ts b/packages/insomnia/src/main/ipc/main.ts
index be2b164833..f3806656e2 100644
--- a/packages/insomnia/src/main/ipc/main.ts
+++ b/packages/insomnia/src/main/ipc/main.ts
@@ -19,6 +19,7 @@ import iconv from 'iconv-lite';
 import { AI_PLUGIN_NAME } from '~/common/constants';
 import { convert } from '~/main/importers/convert';
 import { getCurrentConfig, type LLMConfigServiceAPI } from '~/main/llm-config-service';
+import { multipartBufferToArray, type Part } from '~/main/multipart-buffer-to-array';
 import { insecureReadFile, insecureReadFileWithEncoding, secureReadFile } from '~/main/secure-read-file';
 import type { GenerateCommitsFromDiffFunction, MockRouteData, ModelConfig } from '~/plugins/types';
 
@@ -97,6 +98,7 @@ export interface RendererToMainBridgeAPI {
   setMenuBarVisibility: (visible: boolean) => void;
   installPlugin: typeof installPlugin;
   parseImport: typeof convert;
+  multipartBufferToArray: (options: { bodyBuffer: Buffer; contentType: string }) => Promise<Part[]>;
   writeFile: (options: { path: string; content: string }) => Promise<string>;
   secureReadFile: (options: { path: string }) => Promise<string>;
   insecureReadFile: (options: { path: string }) => Promise<string>;
@@ -183,6 +185,9 @@ export function registerMainHandlers() {
   ipcMainHandle('database.caCertificate.create', async (_, options: { parentId: string; path: string }) => {
     return models.caCertificate.create(options);
   });
+  ipcMainHandle('multipartBufferToArray', async (_, options) => {
+    return multipartBufferToArray(options);
+  });
   ipcMainOn('loginStateChange', async () => {
     BrowserWindow.getAllWindows().forEach(w => {
       w.webContents.send('loggedIn');
diff --git a/packages/insomnia/src/main/ipc/path.ts b/packages/insomnia/src/main/ipc/path.ts
new file mode 100644
index 0000000000..fab2ca3871
--- /dev/null
+++ b/packages/insomnia/src/main/ipc/path.ts
@@ -0,0 +1,18 @@
+import path from 'node:path';
+
+import { ipcMainOn } from '~/main/ipc/electron';
+
+export function registerPathHandlers() {
+  ipcMainOn('path.basename', (event, p: string) => {
+    event.returnValue = path.basename(p);
+  });
+  ipcMainOn('path.dirname', (event, p: string) => {
+    event.returnValue = path.dirname(p);
+  });
+  ipcMainOn('path.join', (event, ...paths: string[]) => {
+    event.returnValue = path.join(...paths);
+  });
+  ipcMainOn('path.resolve', (event, ...paths: string[]) => {
+    event.returnValue = path.resolve(...paths);
+  });
+}
diff --git a/packages/insomnia/src/main/multipart-buffer-to-array.ts b/packages/insomnia/src/main/multipart-buffer-to-array.ts
new file mode 100644
index 0000000000..e1bcdef99a
--- /dev/null
+++ b/packages/insomnia/src/main/multipart-buffer-to-array.ts
@@ -0,0 +1,71 @@
+import { PassThrough } from 'node:stream';
+
+import multiparty from 'multiparty';
+
+export interface Part {
+  id: number;
+  title: string;
+  name: string;
+  bytes: number;
+  value: Buffer;
+  filename: string | null;
+  headers: { name: string; value: string }[];
+}
+export function multipartBufferToArray({
+  bodyBuffer,
+  contentType,
+}: {
+  bodyBuffer: Buffer | null;
+  contentType: string;
+}): Promise<Part[]> {
+  return new Promise((resolve, reject) => {
+    const parts: Part[] = [];
+
+    if (!bodyBuffer) {
+      return resolve(parts);
+    }
+
+    const fakeReq = new PassThrough();
+    // @ts-expect-error -- TSCONVERSION investigate `stream` types
+    fakeReq.headers = {
+      'content-type': contentType,
+    };
+    const form = new multiparty.Form();
+    let id = 0;
+    form.on('part', part => {
+      const dataBuffers: any[] = [];
+      part.on('data', data => {
+        dataBuffers.push(data);
+      });
+      part.on('error', err => {
+        reject(new Error(`Failed to parse part: ${err.message}`));
+      });
+      part.on('end', () => {
+        const title = part.filename ? `${part.name} (${part.filename})` : part.name;
+        parts.push({
+          id,
+          title,
+          value: dataBuffers ? Buffer.concat(dataBuffers) : Buffer.from(''),
+          name: part.name,
+          filename: part.filename || null,
+          bytes: part.byteCount,
+          headers: Object.keys(part.headers).map(name => ({
+            name,
+            value: part.headers[name],
+          })),
+        });
+        id += 1;
+      });
+    });
+    form.on('error', err => {
+      reject(err);
+    });
+    form.on('close', () => {
+      resolve(parts);
+    });
+    // @ts-expect-error -- TSCONVERSION
+    form.parse(fakeReq);
+    fakeReq.write(bodyBuffer);
+    fakeReq.end();
+  });
+}
diff --git a/packages/insomnia/src/renderer.ts b/packages/insomnia/src/renderer.ts
deleted file mode 100644
index 3d440125a6..0000000000
--- a/packages/insomnia/src/renderer.ts
+++ /dev/null
@@ -1 +0,0 @@
-import './ui';
diff --git a/packages/insomnia/src/ui/components/base/file-input-button.tsx b/packages/insomnia/src/ui/components/base/file-input-button.tsx
index a2db78f5fa..e4127044c4 100644
--- a/packages/insomnia/src/ui/components/base/file-input-button.tsx
+++ b/packages/insomnia/src/ui/components/base/file-input-button.tsx
@@ -1,5 +1,3 @@
-import nodePath from 'node:path';
-
 import React, { type HTMLAttributes, useCallback } from 'react';
 
 import { selectFileOrFolder } from '../../../common/select-file-or-folder';
@@ -18,7 +16,7 @@ interface Props extends Omit<HTMLAttributes<HTMLButtonElement>, 'onChange'> {
 export const FileInputButton = (props: Props) => {
   const { showFileName, showFileIcon, path, name, onChange, itemtypes, extensions, disabled, ...extraProps } = props;
   // NOTE: Basename fails if path is not a string, so let's make sure it is
-  const fileName = typeof path === 'string' ? nodePath.basename(path) : null;
+  const fileName = typeof path === 'string' ? window.path.basename(path) : null;
   const _handleChooseFile = useCallback(async () => {
     const { canceled, filePath } = await selectFileOrFolder({
       itemTypes: itemtypes,
diff --git a/packages/insomnia/src/ui/components/design-empty-state.tsx b/packages/insomnia/src/ui/components/design-empty-state.tsx
index a3450ccba0..07abf1dd96 100644
--- a/packages/insomnia/src/ui/components/design-empty-state.tsx
+++ b/packages/insomnia/src/ui/components/design-empty-state.tsx
@@ -1,5 +1,3 @@
-import { readFile } from 'node:fs/promises';
-
 import type { IconName } from '@fortawesome/fontawesome-svg-core';
 import React, { type FC } from 'react';
 import { Button, Heading, Menu, MenuItem, MenuTrigger, Popover } from 'react-aria-components';
@@ -60,7 +58,7 @@ export const DesignEmptyState: FC<Props> = ({ onImport }) => {
           return;
         }
 
-        const contents = String(await readFile(filePath));
+        const contents = String(await window.main.insecureReadFile({ path: filePath }));
         onImport(contents);
       },
     },
diff --git a/packages/insomnia/src/ui/components/dropdowns/preview-mode-dropdown.tsx b/packages/insomnia/src/ui/components/dropdowns/preview-mode-dropdown.tsx
index 398ca5f3f3..b67c814dc7 100644
--- a/packages/insomnia/src/ui/components/dropdowns/preview-mode-dropdown.tsx
+++ b/packages/insomnia/src/ui/components/dropdowns/preview-mode-dropdown.tsx
@@ -1,5 +1,3 @@
-import fs from 'node:fs';
-
 import React, { type FC, useCallback } from 'react';
 import { Button } from 'react-aria-components';
 
@@ -46,11 +44,11 @@ export const PreviewModeDropdown: FC<Props> = ({ download, copyToClipboard }) =>
     if (!filePath) {
       return;
     }
-    const to = fs.createWriteStream(filePath);
-    to.on('error', err => {
-      console.warn('Failed to export har', err);
+
+    await window.main.writeFile({
+      path: filePath,
+      content: har,
     });
-    to.end(har);
   }, [activeRequest, activeResponse]);
 
   const exportDebugFile = useCallback(async () => {
@@ -74,14 +72,11 @@ export const PreviewModeDropdown: FC<Props> = ({ download, copyToClipboard }) =>
     if (canceled) {
       return;
     }
-    const readStream = models.response.getBodyStream(activeResponse);
 
-    if (readStream && filePath && typeof readStream !== 'string') {
-      const to = fs.createWriteStream(filePath);
-      to.write(headers);
-      readStream.pipe(to);
-      to.on('error', err => {
-        console.warn('Failed to save full response', err);
+    if (filePath && activeResponse.bodyBuffer) {
+      await window.main.writeFile({
+        path: filePath,
+        content: headers + '\n' + activeResponse.bodyBuffer.toString('utf8') || '',
       });
     }
   }, [activeRequest, activeResponse]);
diff --git a/packages/insomnia/src/ui/components/editors/body/file-editor.tsx b/packages/insomnia/src/ui/components/editors/body/file-editor.tsx
index a978efec95..b571910806 100644
--- a/packages/insomnia/src/ui/components/editors/body/file-editor.tsx
+++ b/packages/insomnia/src/ui/components/editors/body/file-editor.tsx
@@ -1,8 +1,5 @@
-import fs from 'node:fs';
-
 import React, { type FC, useCallback } from 'react';
 
-import * as misc from '../../../../common/misc';
 import { FileInputButton } from '../../base/file-input-button';
 import { PromptButton } from '../../base/prompt-button';
 
@@ -26,14 +23,6 @@ export const FileEditor: FC<Props> = ({ onChange, path }) => {
   // Replace home path with ~/ to make the path shorter
   const homeDirectory = window.app.getPath('home');
   const pathDescription = path.replace(homeDirectory, '~');
-  let sizeDescription = '';
-
-  try {
-    const bytes = fs.statSync(path).size;
-    sizeDescription = misc.describeByteSize(bytes);
-  } catch {
-    sizeDescription = '';
-  }
 
   return (
     <div className="text-center">
@@ -43,8 +32,7 @@ export const FileEditor: FC<Props> = ({ onChange, path }) => {
           <code className="txt-sm block">
             <span className="force-wrap selectable" title={path}>
               {pathDescription}
-            </span>{' '}
-            <span className="no-wrap">({sizeDescription})</span>
+            </span>
           </code>
         ) : (
           <code className="super-faint txt-sm block">No file selected</code>
diff --git a/packages/insomnia/src/ui/components/editors/body/graph-ql-editor.tsx b/packages/insomnia/src/ui/components/editors/body/graph-ql-editor.tsx
index e8051051f2..37d0881b59 100644
--- a/packages/insomnia/src/ui/components/editors/body/graph-ql-editor.tsx
+++ b/packages/insomnia/src/ui/components/editors/body/graph-ql-editor.tsx
@@ -1,5 +1,3 @@
-import { readFileSync } from 'node:fs';
-
 import type { LintOptions, ShowHintOptions, TextMarker } from 'codemirror';
 import type { GraphQLHintOptions } from 'codemirror-graphql/hint';
 import type { GraphQLInfoOptions } from 'codemirror-graphql/info';
@@ -432,7 +430,7 @@ export const GraphQLEditor: FC<Props> = ({
     }
     try {
       const filePath = filePaths[0]; // showOpenDialog is single select
-      const file = readFileSync(filePath);
+      const file = await window.main.insecureReadFile({ path: filePath });
       const content = JSON.parse(file.toString());
       if (!content.data) {
         throw new Error('JSON file should have a data field with the introspection results');
diff --git a/packages/insomnia/src/ui/components/mcp/event-view.tsx b/packages/insomnia/src/ui/components/mcp/event-view.tsx
index 3a94695032..d825211d29 100644
--- a/packages/insomnia/src/ui/components/mcp/event-view.tsx
+++ b/packages/insomnia/src/ui/components/mcp/event-view.tsx
@@ -1,5 +1,3 @@
-import fs from 'node:fs';
-
 import { CallToolResultSchema, ElicitRequestSchema } from '@modelcontextprotocol/sdk/types.js';
 import { type RJSFSchema, type UiSchema } from '@rjsf/utils';
 import React, { useCallback, useEffect, useRef, useState } from 'react';
@@ -23,7 +21,6 @@ import {
   useRequestLoaderData,
 } from '../../../routes/organization.$organizationId.project.$projectId.workspace.$workspaceId.debug.request.$requestId';
 import { CodeEditor, type CodeEditorHandle } from '../../components/.client/codemirror/code-editor';
-import { showError } from '../../components/modals';
 import { useRequestMetaPatcher } from '../../hooks/use-request';
 import { Dropdown, DropdownItem, DropdownSection, ItemContent } from '../base/dropdown';
 
@@ -63,20 +60,10 @@ export const MessageEventView = ({ event }: Props) => {
     if (canceled || !outputPath) {
       return;
     }
-
-    const to = fs.createWriteStream(outputPath);
-
-    to.on('error', err => {
-      showError({
-        title: 'Save Failed',
-        message: 'Failed to save response body',
-        error: err,
-      });
+    await window.main.writeFile({
+      path: outputPath,
+      content: raw,
     });
-
-    to.write(raw);
-
-    to.end();
   }, [raw]);
 
   const handleCopyResponseToClipboard = useCallback(() => {
diff --git a/packages/insomnia/src/ui/components/mocks/mock-response-pane.tsx b/packages/insomnia/src/ui/components/mocks/mock-response-pane.tsx
index f23d3679a9..d016533d9f 100644
--- a/packages/insomnia/src/ui/components/mocks/mock-response-pane.tsx
+++ b/packages/insomnia/src/ui/components/mocks/mock-response-pane.tsx
@@ -1,5 +1,3 @@
-import fs from 'node:fs';
-
 import type * as Har from 'har-format';
 import React, { Fragment, useCallback, useEffect, useState } from 'react';
 import { Button, Tab, TabList, TabPanel, Tabs, Toolbar } from 'react-aria-components';
@@ -334,17 +332,19 @@ const PreviewModeDropdown = ({
             icon="save"
             label="Export raw response"
             onClick={async () => {
-              const bodyBuffer = await models.response.getBodyBuffer(activeResponse);
               const { canceled, filePath } = await window.dialog.showSaveDialog({
                 title: 'Save Full Response',
                 buttonLabel: 'Save',
                 defaultPath: `response-${Date.now()}.txt`,
               });
 
-              if (canceled || !filePath || !bodyBuffer) {
+              if (canceled || !filePath || !activeResponse.bodyBuffer) {
                 return;
               }
-              fs.promises.writeFile(filePath, bodyBuffer.toString('utf8'));
+              await window.main.writeFile({
+                path: filePath,
+                content: activeResponse.bodyBuffer?.toString('utf8') || '',
+              });
             }}
           />
         </DropdownItem>
@@ -364,7 +364,10 @@ const PreviewModeDropdown = ({
                 if (canceled || !filePath || !bodyBuffer) {
                   return;
                 }
-                fs.promises.writeFile(filePath, jsonPrettify(bodyBuffer.toString('utf8')));
+                await window.main.writeFile({
+                  path: filePath,
+                  content: jsonPrettify(activeResponse.bodyBuffer?.toString('utf8')) || '',
+                });
               }}
             />
           )}
@@ -389,7 +392,10 @@ const PreviewModeDropdown = ({
                 .map(v => v.value)
                 .join('');
 
-              fs.promises.writeFile(filePath, headers);
+              await window.main.writeFile({
+                path: filePath,
+                content: headers,
+              });
             }}
           />
         </DropdownItem>
@@ -411,7 +417,10 @@ const PreviewModeDropdown = ({
               const data = await exportHarCurrentRequest(activeRequest, activeResponse);
               const har = JSON.stringify(data, null, '\t');
 
-              fs.promises.writeFile(filePath, har);
+              await window.main.writeFile({
+                path: filePath,
+                content: har,
+              });
             }}
           />
         </DropdownItem>
diff --git a/packages/insomnia/src/ui/components/modals/mock-route-modal.tsx b/packages/insomnia/src/ui/components/modals/mock-route-modal.tsx
index d03aa82b6c..fb189886ee 100644
--- a/packages/insomnia/src/ui/components/modals/mock-route-modal.tsx
+++ b/packages/insomnia/src/ui/components/modals/mock-route-modal.tsx
@@ -1,5 +1,3 @@
-import fs from 'node:fs/promises';
-
 import React from 'react';
 import {
   Button,
@@ -76,8 +74,7 @@ export const MockRouteModal = ({
     let body = '';
     if (responseData?.bodyPath) {
       try {
-        const bodyBuffer = await fs.readFile(responseData.bodyPath);
-        body = bodyBuffer.toString();
+        body = await window.main.secureReadFile({ path: responseData.bodyPath });
       } catch (error) {
         console.error('Failed to read response body:', error);
       }
diff --git a/packages/insomnia/src/ui/components/modals/proto-files-modal.tsx b/packages/insomnia/src/ui/components/modals/proto-files-modal.tsx
index 519d502931..3c1150e77a 100644
--- a/packages/insomnia/src/ui/components/modals/proto-files-modal.tsx
+++ b/packages/insomnia/src/ui/components/modals/proto-files-modal.tsx
@@ -1,5 +1,3 @@
-import path from 'node:path';
-
 import * as protoLoader from '@grpc/proto-loader';
 import React, { type FC, useEffect, useRef, useState } from 'react';
 import { useParams } from 'react-router';
@@ -232,7 +230,7 @@ export const ProtoFilesModal: FC<Props> = ({ defaultId, onHide, onSave }) => {
     const protoText = await window.main.insecureReadFile({ path: filePath });
 
     const updatedFile = await models.protoFile.update(protoFile, {
-      name: path.basename(filePath),
+      name: window.path.basename(filePath),
       protoText,
     });
     const impacted = await models.grpcRequest.findByProtoFileId(updatedFile._id);
@@ -287,7 +285,7 @@ export const ProtoFilesModal: FC<Props> = ({ defaultId, onHide, onSave }) => {
     const protoText = await window.main.insecureReadFile({ path: filePath });
 
     const newFile = await models.protoFile.create({
-      name: path.basename(filePath),
+      name: window.path.basename(filePath),
       parentId: workspaceId,
       protoText,
     });
diff --git a/packages/insomnia/src/ui/components/panes/request-test-result-pane.tsx b/packages/insomnia/src/ui/components/panes/request-test-result-pane.tsx
index bb0dc87af4..f456b973c1 100644
--- a/packages/insomnia/src/ui/components/panes/request-test-result-pane.tsx
+++ b/packages/insomnia/src/ui/components/panes/request-test-result-pane.tsx
@@ -1,5 +1,3 @@
-import crypto from 'node:crypto';
-
 import React, { type FC, useState } from 'react';
 import { Toolbar } from 'react-aria-components';
 
@@ -59,9 +57,7 @@ export const RequestTestResultRows: FC<RequestTestResultRowsProps> = ({
 
       return Boolean(fuzzyMatch(resultFilter, result.testCase, { splitSpace: false, loose: true })?.indexes);
     })
-    .map((result, i: number) => {
-      const key = crypto.createHash('sha1').update(`${result.testCase}"-${i}`).digest('hex');
-
+    .map(result => {
       const statusText = {
         passed: 'PASS',
         failed: 'FAIL',
@@ -99,7 +95,7 @@ export const RequestTestResultRows: FC<RequestTestResultRowsProps> = ({
             : 'Unknown';
 
       return (
-        <div key={key} data-testid="test-result-row">
+        <div key={result.testCase} data-testid="test-result-row">
           <div className="my-3 flex w-full text-base">
             <div className="m-auto mx-1 leading-4">
               <span className="mr-2 ml-2">{statusTag}</span>
diff --git a/packages/insomnia/src/ui/components/panes/response-pane.tsx b/packages/insomnia/src/ui/components/panes/response-pane.tsx
index dfec3bdfb3..dead53b4b2 100644
--- a/packages/insomnia/src/ui/components/panes/response-pane.tsx
+++ b/packages/insomnia/src/ui/components/panes/response-pane.tsx
@@ -1,10 +1,9 @@
-import fs from 'node:fs';
-
 import { extension as mimeExtension } from 'mime-types';
 import React, { type FC, useCallback, useMemo } from 'react';
 import { Tab, TabList, TabPanel, Tabs, Toolbar } from 'react-aria-components';
 
 import { useRootLoaderData } from '~/root';
+import { jsonPrettify } from '~/utils/prettify/json';
 
 import { PREVIEW_MODE_SOURCE } from '../../../common/constants';
 import { getSetCookieHeaders } from '../../../common/misc';
@@ -14,14 +13,12 @@ import {
   type RequestLoaderData,
   useRequestLoaderData,
 } from '../../../routes/organization.$organizationId.project.$projectId.workspace.$workspaceId.debug.request.$requestId';
-import { jsonPrettify } from '../../../utils/prettify/json';
 import { useExecutionState } from '../../hooks/use-execution-state';
 import { useRequestMetaPatcher } from '../../hooks/use-request';
 import { PreviewModeDropdown } from '../dropdowns/preview-mode-dropdown';
 import { ResponseHistoryDropdown } from '../dropdowns/response-history-dropdown';
 import { MockResponseExtractor } from '../editors/mock-response-extractor';
 import { ErrorBoundary } from '../error-boundary';
-import { showError } from '../modals';
 import { ResponseTimer } from '../response-timer';
 import { SizeTag } from '../tags/size-tag';
 import { StatusTag } from '../tags/status-tag';
@@ -85,34 +82,14 @@ export const ResponsePane: FC<Props> = ({ activeRequestId }) => {
       if (canceled) {
         return;
       }
-
-      const readStream = models.response.getBodyStream(activeResponse);
-      const dataBuffers: any[] = [];
-
-      if (readStream && outputPath && typeof readStream !== 'string') {
-        readStream.on('data', data => {
-          dataBuffers.push(data);
-        });
-        readStream.on('end', () => {
-          const to = fs.createWriteStream(outputPath);
-          const finalBuffer = Buffer.concat(dataBuffers);
-          to.on('error', err => {
-            showError({
-              title: 'Save Failed',
-              message: 'Failed to save response body',
-              error: err,
-            });
-          });
-
-          if (prettify && contentType.includes('json')) {
-            to.write(jsonPrettify(finalBuffer.toString('utf8')));
-          } else {
-            to.write(finalBuffer);
-          }
-
-          to.end();
+      if (prettify && contentType.includes('json')) {
+        await window.main.writeFile({
+          path: outputPath,
+          content: jsonPrettify(activeResponse.bodyBuffer?.toString('utf8')) || '',
         });
+        return;
       }
+      await window.main.writeFile({ path: outputPath, content: activeResponse.bodyBuffer?.toString('utf8') || '' });
     },
     [activeRequest, activeResponse],
   );
diff --git a/packages/insomnia/src/ui/components/settings/import-export.tsx b/packages/insomnia/src/ui/components/settings/import-export.tsx
index 021cdd2e8e..eacbfbaae8 100644
--- a/packages/insomnia/src/ui/components/settings/import-export.tsx
+++ b/packages/insomnia/src/ui/components/settings/import-export.tsx
@@ -1,6 +1,3 @@
-import { mkdir, writeFile } from 'node:fs/promises';
-import path from 'node:path';
-
 import { format } from 'date-fns';
 import { getProductName } from 'insomnia/src/common/constants';
 import { database } from 'insomnia/src/common/database';
@@ -108,7 +105,7 @@ const showSaveExportedFileDialog = async ({
   const options = {
     title: 'Export Insomnia Data',
     buttonLabel: 'Export',
-    defaultPath: `${path.join(dir, `${name}_${date}`)}.${selectedFormat}`,
+    defaultPath: `${window.path.join(dir, `${name}_${date}`)}.${selectedFormat}`,
   };
   const { filePath } = await window.dialog.showSaveDialog(options);
   return filePath || null;
@@ -131,8 +128,11 @@ const showSaveExportedFolderDialog = async () => {
 
 async function writeExportedFileToFileSystem(filename: string, data: string) {
   // Remember last exported path
-  window.localStorage.setItem('insomnia.lastExportPath', path.dirname(filename));
-  await writeFile(filename, data);
+  window.localStorage.setItem('insomnia.lastExportPath', window.path.dirname(filename));
+  await window.main.writeFile({
+    path: filename,
+    content: data,
+  });
 }
 
 export const exportProjectToFile = (activeProjectName: string, workspacesForActiveProject: Workspace[]) => {
@@ -196,12 +196,14 @@ export const exportProjectToFile = (activeProjectName: string, workspacesForActi
             }
 
             const projectName = activeProjectName.replace(/ /g, '-');
-            const insomniaProjectExportFolder = path.join(dirPath, `insomnia-export.${projectName}.${Date.now()}`);
-            await mkdir(insomniaProjectExportFolder);
+            const insomniaProjectExportFolder = window.path.join(
+              dirPath,
+              `insomnia-export.${projectName}.${Date.now()}`,
+            );
 
             for (const workspace of workspacesForActiveProject) {
               const workspaceName = workspace.name.replace(/ /g, '-');
-              const fileName = path.join(insomniaProjectExportFolder, `${workspaceName}-${workspace._id}.yaml`);
+              const fileName = window.path.join(insomniaProjectExportFolder, `${workspaceName}-${workspace._id}.yaml`);
               const stringifiedExport = await getInsomniaV5DataExport({
                 workspaceId: workspace._id,
                 includePrivateEnvironments: shouldExportPrivateEnvironments,
@@ -379,7 +381,7 @@ export async function exportWorkspaceData({
 
   try {
     const workspaceName = workspace.name.replace(/ /g, '-');
-    const filePath = path.join(dirPath, `${workspaceName}-${workspace._id}.yaml`);
+    const filePath = window.path.join(dirPath, `${workspaceName}-${workspace._id}.yaml`);
     await writeExportedFileToFileSystem(filePath, insomniaExport);
   } catch (error) {
     console.error(error);
@@ -404,8 +406,7 @@ export async function exportAllData({ dirPath }: { dirPath: string }): Promise<v
     includePrivateEnvironments = await showExportPrivateEnvironmentsModal();
   }
 
-  const insomniaExportFolder = path.join(dirPath, `insomnia-export.${Date.now()}`);
-  await mkdir(insomniaExportFolder);
+  const insomniaExportFolder = window.path.join(dirPath, `insomnia-export.${Date.now()}`);
 
   for (const workspace of workspacesWithoutMcp) {
     await exportWorkspaceData({
diff --git a/packages/insomnia/src/ui/components/settings/llms/gguf.tsx b/packages/insomnia/src/ui/components/settings/llms/gguf.tsx
index c049863846..e327567d1e 100644
--- a/packages/insomnia/src/ui/components/settings/llms/gguf.tsx
+++ b/packages/insomnia/src/ui/components/settings/llms/gguf.tsx
@@ -1,5 +1,3 @@
-import nodePath from 'node:path';
-
 import { useCallback, useEffect, useId, useMemo, useState } from 'react';
 import { Button, Input, Text } from 'react-aria-components';
 import z from 'zod/v4';
@@ -41,8 +39,8 @@ export const GGUF = ({
   });
   const [showAdvancedOptions, setShowAdvancedOptions] = useState(false);
 
-  const userDataPath = nodePath.resolve(window.app.getPath('userData'));
-  const llmsFolder = nodePath.resolve(userDataPath, LLMS_FOLDER_NAME);
+  const userDataPath = window.path.resolve(window.app.getPath('userData'));
+  const llmsFolder = window.path.resolve(userDataPath, LLMS_FOLDER_NAME);
   const [availableLLMs, setAvailableLLMs] = useState<string[]>([]);
   const [selectedModel, setSelectedModel] = useState<string>('');
   const refreshModelsDirectory = useCallback(() => {
diff --git a/packages/insomnia/src/ui/components/settings/plugins.tsx b/packages/insomnia/src/ui/components/settings/plugins.tsx
index c8f2d14bc0..ade6816f81 100644
--- a/packages/insomnia/src/ui/components/settings/plugins.tsx
+++ b/packages/insomnia/src/ui/components/settings/plugins.tsx
@@ -1,5 +1,3 @@
-import nodePath from 'node:path';
-
 import React, { type FC, useEffect, useState } from 'react';
 import {
   Button,
@@ -403,10 +401,9 @@ export const Plugins: FC = () => {
               )}
             >
               {plugin => {
-                const link = nodePath.resolve(
-                  plugin.name.startsWith('insomnia-plugin-') ? PLUGIN_HUB_BASE : NPM_PACKAGE_BASE,
-                  plugin.name,
-                );
+                const link = plugin.name.startsWith('insomnia-plugin-')
+                  ? PLUGIN_HUB_BASE
+                  : NPM_PACKAGE_BASE + '/' + plugin.name;
 
                 return (
                   <GridListItem
@@ -490,7 +487,7 @@ export const Plugins: FC = () => {
               className="text-(--color-surprise) underline"
               onPress={() =>
                 window.shell.showItemInFolder(
-                  nodePath.resolve(process.env['INSOMNIA_DATA_PATH'] || window.app.getPath('userData'), 'plugins'),
+                  window.path.resolve(process.env['INSOMNIA_DATA_PATH'] || window.app.getPath('userData'), 'plugins'),
                 )
               }
             >
diff --git a/packages/insomnia/src/ui/components/viewers/response-headers-viewer.tsx b/packages/insomnia/src/ui/components/viewers/response-headers-viewer.tsx
index 919f16b7f7..4df2f59f5f 100644
--- a/packages/insomnia/src/ui/components/viewers/response-headers-viewer.tsx
+++ b/packages/insomnia/src/ui/components/viewers/response-headers-viewer.tsx
@@ -1,5 +1,3 @@
-import { URL } from 'node:url';
-
 import React, { type FC, Fragment, useMemo } from 'react';
 
 import type { ResponseHeader } from '../../../models/response';
diff --git a/packages/insomnia/src/ui/components/viewers/response-multipart-viewer.tsx b/packages/insomnia/src/ui/components/viewers/response-multipart-viewer.tsx
index ba0ce01bc4..234d6debea 100644
--- a/packages/insomnia/src/ui/components/viewers/response-multipart-viewer.tsx
+++ b/packages/insomnia/src/ui/components/viewers/response-multipart-viewer.tsx
@@ -1,32 +1,18 @@
-import fs from 'node:fs';
-import path from 'node:path';
-import { PassThrough } from 'node:stream';
-
 import { format } from 'date-fns';
 import type { SaveDialogOptions } from 'electron';
 import { extension as mimeExtension } from 'mime-types';
-import multiparty from 'multiparty';
 import React, { type FC, useCallback, useEffect, useState } from 'react';
 import { Button } from 'react-aria-components';
 
+import type { Part } from '~/main/multipart-buffer-to-array';
+
 import { getContentTypeFromHeaders, PREVIEW_MODE_FRIENDLY } from '../../../common/constants';
-import type { ResponseHeader } from '../../../models/response';
 import { Dropdown, DropdownItem, ItemContent } from '../base/dropdown';
 import { showModal } from '../modals/index';
 import { WrapperModal } from '../modals/wrapper-modal';
 import { ResponseHeadersViewer } from './response-headers-viewer';
 import { ResponseViewer } from './response-viewer';
 
-interface Part {
-  id: number;
-  title: string;
-  name: string;
-  bytes: number;
-  value: Buffer;
-  filename: string | null;
-  headers: ResponseHeader[];
-}
-
 interface Props {
   download: (...args: any[]) => any;
   responseId: string;
@@ -58,8 +44,11 @@ export const ResponseMultipartViewer: FC<Props> = ({
 
   useEffect(() => {
     const init = async () => {
+      if (!bodyBuffer || !contentType) {
+        return;
+      }
       try {
-        const parts = await multipartBufferToArray({ bodyBuffer, contentType });
+        const parts = await window.main.multipartBufferToArray({ bodyBuffer, contentType });
         setParts(parts);
         setSelectedPart(parts[0]);
       } catch (err) {
@@ -96,7 +85,7 @@ export const ResponseMultipartViewer: FC<Props> = ({
     const options: SaveDialogOptions = {
       title: 'Save as File',
       buttonLabel: 'Save',
-      defaultPath: path.join(dir, filename),
+      defaultPath: window.path.join(dir, filename),
       filters: [
         // @ts-expect-error https://github.com/electron/electron/pull/29322
         {
@@ -111,11 +100,13 @@ export const ResponseMultipartViewer: FC<Props> = ({
     }
 
     // Remember last exported path
-    window.localStorage.setItem('insomnia.lastExportPath', path.dirname(filename));
+    window.localStorage.setItem('insomnia.lastExportPath', window.path.dirname(filename));
 
-    // Save the file
     try {
-      await fs.promises.writeFile(filePath, selectedPart.value);
+      await window.main.writeFile({
+        path: filePath,
+        content: selectedPart.value.toString('utf8'),
+      });
     } catch (err) {
       console.warn('Failed to save multipart to file', err);
     }
@@ -217,62 +208,3 @@ export const ResponseMultipartViewer: FC<Props> = ({
     </div>
   );
 };
-
-function multipartBufferToArray({
-  bodyBuffer,
-  contentType,
-}: {
-  bodyBuffer: Buffer | null;
-  contentType: string;
-}): Promise<Part[]> {
-  return new Promise((resolve, reject) => {
-    const parts: Part[] = [];
-
-    if (!bodyBuffer) {
-      return resolve(parts);
-    }
-
-    const fakeReq = new PassThrough();
-    // @ts-expect-error -- TSCONVERSION investigate `stream` types
-    fakeReq.headers = {
-      'content-type': contentType,
-    };
-    const form = new multiparty.Form();
-    let id = 0;
-    form.on('part', part => {
-      const dataBuffers: any[] = [];
-      part.on('data', data => {
-        dataBuffers.push(data);
-      });
-      part.on('error', err => {
-        reject(new Error(`Failed to parse part: ${err.message}`));
-      });
-      part.on('end', () => {
-        const title = part.filename ? `${part.name} (${part.filename})` : part.name;
-        parts.push({
-          id,
-          title,
-          value: dataBuffers ? Buffer.concat(dataBuffers) : Buffer.from(''),
-          name: part.name,
-          filename: part.filename || null,
-          bytes: part.byteCount,
-          headers: Object.keys(part.headers).map(name => ({
-            name,
-            value: part.headers[name],
-          })),
-        });
-        id += 1;
-      });
-    });
-    form.on('error', err => {
-      reject(err);
-    });
-    form.on('close', () => {
-      resolve(parts);
-    });
-    // @ts-expect-error -- TSCONVERSION
-    form.parse(fakeReq);
-    fakeReq.write(bodyBuffer);
-    fakeReq.end();
-  });
-}
diff --git a/packages/insomnia/src/ui/components/websockets/event-view.tsx b/packages/insomnia/src/ui/components/websockets/event-view.tsx
index 7e1bbbf103..33dadd92cb 100644
--- a/packages/insomnia/src/ui/components/websockets/event-view.tsx
+++ b/packages/insomnia/src/ui/components/websockets/event-view.tsx
@@ -1,5 +1,3 @@
-import fs from 'node:fs';
-
 import React, { type FC, useCallback, useRef } from 'react';
 import { useParams } from 'react-router';
 
@@ -11,7 +9,6 @@ import type { SocketIOEvent } from '../../../main/network/socket-io';
 import type { WebSocketEvent, WebSocketMessageEvent } from '../../../main/network/websocket';
 import { useRequestLoaderData } from '../../../routes/organization.$organizationId.project.$projectId.workspace.$workspaceId.debug.request.$requestId';
 import { useRequestMetaPatcher } from '../../hooks/use-request';
-import { showError } from '../modals';
 import { WebSocketPreviewModeDropdown } from './websocket-preview-dropdown';
 
 interface Props<T> {
@@ -42,20 +39,10 @@ export const MessageEventView: FC<Props<CurlMessageEvent | WebSocketMessageEvent
     if (canceled || !outputPath) {
       return;
     }
-
-    const to = fs.createWriteStream(outputPath);
-
-    to.on('error', err => {
-      showError({
-        title: 'Save Failed',
-        message: 'Failed to save response body',
-        error: err,
-      });
+    await window.main.writeFile({
+      path: outputPath,
+      content: raw,
     });
-
-    to.write(raw);
-
-    to.end();
   }, [raw]);
 
   const handleCopyResponseToClipboard = useCallback(() => {
diff --git a/packages/insomnia/src/ui/components/websockets/realtime-response-pane.tsx b/packages/insomnia/src/ui/components/websockets/realtime-response-pane.tsx
index c262b852a9..d35c1b0f73 100644
--- a/packages/insomnia/src/ui/components/websockets/realtime-response-pane.tsx
+++ b/packages/insomnia/src/ui/components/websockets/realtime-response-pane.tsx
@@ -1,5 +1,3 @@
-import fs from 'node:fs';
-
 import classnames from 'classnames';
 import React, { type FC, useEffect, useMemo, useState } from 'react';
 import { Button, Input, SearchField, Tab, TabList, TabPanel, Tabs } from 'react-aria-components';
@@ -206,18 +204,10 @@ const RealtimeActiveResponsePane: FC<RealtimeActiveResponsePaneProps & { readySt
   useEffect(() => {
     let isMounted = true;
     const fn = async () => {
-      try {
-        await fs.promises.stat(response.timelinePath);
-      } catch (err) {
-        if (err.code === 'ENOENT') {
-          return setTimeline([]);
-        }
-      }
-
-      // allow to read the file as it is chosen by user
       const content = await window.main.secureReadFile({
         path: response.timelinePath,
       });
+
       const timelineParsed = deserializeNDJSON(content);
       if (isMounted) {
         setTimeline(timelineParsed);
diff --git a/packages/insomnia/types/global.d.ts b/packages/insomnia/types/global.d.ts
index 0a987f7494..745c25639f 100644
--- a/packages/insomnia/types/global.d.ts
+++ b/packages/insomnia/types/global.d.ts
@@ -12,6 +12,12 @@ declare global {
     shell: Pick<Electron.Shell, 'showItemInFolder' | 'openPath'>;
     clipboard: Pick<Electron.Clipboard, 'readText' | 'writeText' | 'clear'>;
     webUtils: Pick<Electron.WebUtils, 'getPathForFile'>;
+    path: {
+      resolve: (...paths: string[]) => string;
+      dirname: (p: string) => string;
+      basename: (p: string) => string;
+      join: (...paths: string[]) => string;
+    };
     showAlert: (options?: Record<string, any>) => void;
     showWrapper: (options?: Record<string, any>) => void;
     showPrompt: (options?: Record<string, any>) => void;
diff --git a/packages/insomnia/vite.config.ts b/packages/insomnia/vite.config.ts
index d78c923632..8f6a2f1627 100644
--- a/packages/insomnia/vite.config.ts
+++ b/packages/insomnia/vite.config.ts
@@ -70,7 +70,7 @@ export default defineConfig(({ mode }) => {
     },
   };
 });
-
+let totalWarnings = 0;
 function DetectNodeBuiltinImports() {
   const builtins = new Set(builtinModules);
 
@@ -85,7 +85,8 @@ function DetectNodeBuiltinImports() {
       // If the import target is a Node builtin module
       if (builtins.has(source) || builtins.has(source.replace('virtual:external:node:', ''))) {
         const file = path.relative(process.cwd(), importer);
-        console.warn(`⚠️  File "${file}" imports Node builtin module "${source}"`);
+        totalWarnings += 1;
+        console.warn(`⚠️  ${totalWarnings} File "${file}" imports Node builtin module "${source}"`);
       }
 
       return null; // Let Vite handle the actual resolution