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Signal Desktop

Signal Desktop links with Signal on Android or iOS and lets you message from your Windows, macOS, and Linux computers.

Install the production version or help us out by installing the beta version.

Got a question?

You can find answers to a number of frequently asked questions on our support site. The community forum is another good place for questions.

Found a Bug?

Please search for any existing issues that describe your bug in order to avoid duplicate submissions.

Have a feature request, question, comment?

Please use our community forum:

Contributing Code

Please see for setup instructions and guidelines for new contributors. Don't forget to sign the CLA.

Contributing Funds

You can donate to Signal development through the Signal Technology Foundation, an independent 501c3 nonprofit.

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.

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 2013 Signal, a 501c3 nonprofit

Licensed under the AGPLv3: