Zulip is the only modern team chat app that is designed for both live and asynchronous conversations. Zulip topics create a separate space for each discussion, so different conversations will never get in each other's way.
- - Zulip is the most popular Web-based, Windows, Android & Mac alternative to WorldChat.
- - Zulip is the most popular Open Source & free alternative to WorldChat.
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.
Cwtch - (a Welsh word roughly translating to “a hug that creates a safe place”) is a decentralized, privacy-preserving, multi-party messaging protocol that can be used to build metadata resistant applications.
Integrating Bridgefy allows mobile devices to communicate in a secure and efficient way across large distances, without having them depend on access to a Wi-Fi network or a data plan.
Tinfoil Chat (TFC) is a FOSS+FHD peer-to-peer messaging system that relies on high assurance hardware architecture to protect users from passive collection, MITM attacks and most importantly, remote key exfiltration.
Tinfoil Chat Features
xat is a fun social networking site with the coolest online chat box. Make friends, join a group or run your own chat. Over 2500 unique smilies to combine and use. Embed to your blog or page for free (no need to download). Also available on mobile.