Signal is a messaging app for simple private communication with friends.
Signal uses your phone's data connection (WiFi/3G/4G) to communicate securely, optionally supports plain SMS/MMS to function as a unified messenger, and can also encrypt the stored messages on your phone.
Currently available on the Play store.
Contributing Bug reports
We use GitHub for bug tracking. Please search the existing issues for your bug and create a new one if the issue is not yet tracked!
Joining the Beta
Want to live life on the bleeding edge and help out with testing?
You can subscribe to Signal Android Beta releases here: https://play.google.com/apps/testing/org.thoughtcrime.securesms
If you're interested in a life of peace and tranquility, stick with the standard releases.
Interested in helping to translate Signal? Contribute here:
Instructions on how to setup your development environment and build Signal can be found in BUILDING.md.
If you're new to the Signal codebase, we recommend going through our issues and picking out a simple bug to fix (check the "easy" label in our issues) in order to get yourself familiar.
For larger changes and feature ideas, we ask that you propose it on the mailing list for a high-level discussion before implementation.
This repository is set up with BitHub, so you can make money for committing to Signal. The current BitHub price for an accepted pull request is:
Have something you want to say about Open Whisper Systems projects or want to be part of the conversation? Get involved in the mailing list!
You can add funds to BitHub to directly help further development efforts.
For troubleshooting and questions, please visit our support center!
Looking for documentation? Check out the wiki!
This distribution includes cryptographic software. The country in which you currently reside may have restrictions on the import, possession, use, and/or re-export to another country, of encryption software. BEFORE using any encryption software, please check your country's laws, regulations and policies concerning the import, possession, or use, and re-export of encryption software, to see if this is permitted. See http://www.wassenaar.org/ for more information.
The U.S. Government Department of Commerce, Bureau of Industry and Security (BIS), has classified this software as Export Commodity Control Number (ECCN) 5D002.C.1, which includes information security software using or performing cryptographic functions with asymmetric algorithms. The form and manner of this distribution makes it eligible for export under the License Exception ENC Technology Software Unrestricted (TSU) exception (see the BIS Export Administration Regulations, Section 740.13) for both object code and source code.
Copyright 2011 Whisper Systems
Copyright 2013-2016 Open Whisper Systems
Licensed under the GPLv3: http://www.gnu.org/licenses/gpl-3.0.html