The most popular alternative is Telegram, which is free. If that doesn't suit you, our users have ranked more than 100 alternatives to Signal so hopefully you can find a suitable replacement. Other interesting Signal alternatives are Element (Freemium, Open Source), Jitsi (Free, Open Source), Tox (Free, Open Source) and Wire (Free Personal, Open Source).
- µTox is the lightweight client with minimal dependencies; it not only looks pretty, it runs fast!.
- VideoMeeting is a free and open source video conference solution built to have video calls and chats using your web browser. It is a pure web application based on WebRTC that can provide communication features within your web browser.
- KakaoTalk is a phone number based messenger service that allows users anywhere in the world to chat one-to-one or in a group for free. (no SMS service)
- Quantum-resistant encrypted messaging, video/audio calls, and file transfers in the browser with optional registration and no downloads required.
- The unlimited 1-click video calling
No time limits. No downloads. Send unlimited links with free dial-in, free 50 person calls, and recording. All on your own subdomain.
- Facechat - Facebook dating. Meet new friends around the world. Free online chat rooms LIVE! no e-mail, no password, no registration, 100% anonymous, chat in your own language.
- SureSpot is an open source encrypted messenger designed to make encrypted messaging simple and accessible to anyone.
- FluffyChat is an open, nonprofit and cute matrix messenger app for Ubuntu Touch, Android and iOS.OpenOpensource and open development where everyone can join.Nonprofit
- Fully open source instant messaging server and clients. No proprietary components or non-free dependencies. Backend in pure Go (GPL 3.