Open source alternatives to WhatsApp

Private messaging without a middleman: these open protocols run on your own server and encrypt end-to-end. SimpleX Chat has no identifiers a…

Private messaging without a middleman: these open protocols run on your own server and encrypt end-to-end. SimpleX Chat has no identifiers at all; Jami is peer-to-peer; Conduit is a light Matrix server you can pair with Element.

Compare

ProgramLicenseSelf-hostedLast releaseActivity
SimpleX Chat AGPL-3.0 Yes Sep 26, 2026 Nov 2026
Jami MIT Yes — Oct 2020
Conduit Apache-2.0 Yes Sep 29, 2026 Nov 2026
Jami MIT Yes — Oct 2020
Tox GPL-3.0 Yes Mar 12, 2015 Jul 2024
SimpleX Chat logo SimpleX Chat Private messaging without user identifiers for people needing metadata-resistant chat AGPL-3.0 Messaging Android Linux v7.0.3 ★ 19,644 Jami GPL-3.0 Messaging ★ 28 Conduit Apache-2.0 Messaging ★ 603 Jami GPL-3.0 Messaging ★ 28 Tox GPL-3.0 Messaging ★ 8,743

How to choose

Compare the options on what matters for your case: the license (if you run a business, check commercial use), the platforms you already operate, and how actively each project releases. Every program above links to its official project page, release notes and source code.