Fetching contributors…
Cannot retrieve contributors at this time
71 lines (45 sloc) 3.53 KB

Silence Build Status

Silence (formerly SMSSecure) is an SMS/MMS application that allows you to protect your privacy while communicating with friends.

Using Silence, you can send SMS messages and share media or attachments with complete privacy.

Get it on F-Droid Get it on Google Play


  • Easy. Silence works like any other SMS application. There's nothing to sign up for and no new service your friends need to join.
  • Reliable. Silence communicates using encrypted SMS messages. No servers or internet connection required.
  • Private. Silence uses the Signal encryption protocol to provide privacy for every message, every time.
  • Safe. All messages are encrypted locally, so if your phone is lost or stolen, your messages are protected.
  • Open Source. Silence is Free and Open Source, enabling anyone to verify its security by auditing the code.

Project goals

This is a fork of TextSecure (now Signal) that aims to keep the SMS encryption that TextSecure removed for a variety of reasons.

Silence focuses on SMS and MMS. This fork aims to:

  • Keep SMS/MMS encryption
  • Drop Google services dependencies (push messages are not available in Silence)
  • Integrate upstream bugfixes and patches from TextSecure

Migrating from TextSecure to Silence

  • In TextSecure, export a plaintext backup. Warning: the backup will not be encrypted.
  • Install Silence.
  • In Silence, import the plaintext backup (this will import the TextSecure backup if no Silence backup is found).
  • If TextSecure v2.6.4 or earlier is installed, update or uninstall it so it doesn't conflict (can cause errors with key exchanges).
  • Enjoy Silence!

Note: You will have to start new secured sessions with your contacts.


See for how to contribute code, translations, or bug reports.

Instructions on how to setup a development environment and build Silence can be found in


We accept Bitcoin donations. This will help us to pay various costs (web hosting, domain name, etc.). Our Bitcoin address is:




Looking for documentation? Check out the wiki of the original project:


Have a question? Want to help out? Join our IRC channel: #Silence on Freenode or follow @SilenceIM on Twitter.


Cryptography Notice

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 for more information.


Licensed under the GPLv3: