@ -311,6 +311,7 @@ _CalDAV or CardDAV web-based clients._
- [TextBelt](https://github.com/typpo/textbelt) `⚠` - Outgoing SMS API that uses carrier-specific gateways to deliver your text messages for free, and without ads. `MIT``Javascript`
- [Tox](https://tox.chat/) - Distributed, secure messenger with audio and video chat capabilities. ([Source Code](https://github.com/irungentoo/toxcore)) `GPL-3.0``C`
- [Tuber](https://blog.trailofbits.com/2015/12/15/self-hosted-video-chat-with-tuber/) - Peer-to-peer video chat that works. ([Source Code](https://github.com/trailofbits/tubertc)) `MIT``Javascript`
- [WBO](https://github.com/lovasoa/whitebophir#wbo) - A web Whiteboard to collaborate in real-time on schemas, drawings, and notes. ([Demo](https://wbo.ophir.dev/)) `AGPL-3.0``Nodejs/Docker`
- [ZeroNet](https://zeronet.io/) `⚠` - Open, free, and uncensorable websites, using Bitcoin cryptography and BitTorrent network. ([Source Code](https://github.com/HelloZeroNet/ZeroNet)) `GPL-2.0``Python`
- [Zulip](https://zulip.org) - Zulip is a powerful, open source group chat application. ([Source Code](https://github.com/zulip/zulip)) `Apache-2.0/Other``Python`