The most popular alternative is Signal, which is both free and Open Source. If that doesn't suit you, our users have ranked 32 alternatives to Cryptocat so hopefully you can find a suitable replacement. Other interesting Cryptocat alternatives are Element (Freemium, Open Source), Jitsi (Free, Open Source), Tox (Free, Open Source) and Wire (Free Personal, Open Source).
- Using Signal, you can communicate instantly while avoiding SMS fees, create groups so that you can chat in real time with all your friends at once, and share media or attachments...
- A free instant messaging and collaboration software based on the Matrix protocol.
- Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full encryption that supports protocols such as SIP, XMPP/Jabber, ICQ/AIM, Windows Live, Yahoo!
- Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.
- Wire is the most secure collaboration platform featuring messenger, voice, video, conference calls, file-sharing, and external collaboration –all protected by the most secure...
- Matrix defines a set of open APIs for decentralised communication, suitable for securely publishing, persisting and subscribing to data over a global open federation of servers...
- Voice, video and chat communications, secure, decentralized, strong privacy and freedoms.
- Keybase is a new and free security app for mobile phones and computers. For the geeks among us: it's open source and powered by public-key cryptography.
- An open-source decentralized and encrypted messaging app even without internet connection via Wi-Fi and Bluetooth.
Messages are stored securely on your device, not in the cloud. Connect directly with nearby contacts - no Internet access is required.
- A secure, end-to-end encrypted Swiss instant messenger with a focus on privacy.