# Briar
Briar is a messaging app designed for activists, journalists, and anyone else who needs a safe, easy and robust way to communicate.
Unlike traditional messaging apps, Briar doesn't rely on a central server - messages are synchronized directly between the users' devices.
If the Internet's down, Briar can sync via Bluetooth or Wi-Fi, keeping information flowing in a crisis. If the Internet's up, Briar can sync via the Tor network, protecting users and their relationships from surveillance.
## Download Briar
[
](https://briarproject.org/fdroid)
[
](https://play.google.com/store/apps/details?id=org.briarproject.briar.android)
You can also [download the APK file](https://briarproject.org/apk) directly from
our site.
## Useful links
[Project website](https://briarproject.org/)
[Source code](https://code.briarproject.org/briar/briar/tree/master)
[User manual](https://briarproject.org/manual/)
[Wiki](https://code.briarproject.org/briar/briar/-/wikis/home)
[Privacy policy](https://briarproject.org/privacy)
## Reproducible builds
We provide [docker images](https://code.briarproject.org/briar/briar-reproducer#briar-reproducer)
to ease the task of verifying that the published APK binaries
include nothing but our publicly available source code.
You can either use those images or use them as a blueprint to build your own environment
for reproduction.
## Donate
[](https://liberapay.com/Briar/donate)
Bitcoin and BCH: 1NZCKkUCtJV2U2Y9hDb9uq8S7ksFCFGR6K