Beeper
Automattic
Single inbox that bridges WhatsApp, Telegram, Signal, Slack and other networks into one desktop chat list.
Windows · macOS · Linux
No known warnings · checked 23 Oct 2026
Delta Chat
Delta Chat contributors
FREEGPL-3.0-or-later
Chat app that sends messages over ordinary email accounts, encrypting them end to end where both sides support it.
Links go to the official site. SoftHarbor hosts no downloads.
At a glance
- Developer
- Delta Chat contributors
- Platforms
- Windows · macOS · Linux
- License
- GPL-3.0-or-later
- Tags
- email · pgp · decentralized · no-signup
- Security
- No known warnings · checked 23 Oct 2026 · View scan
- Added
- 28 Jul 2026
More in Communication
FREE
Betterbird
Betterbird contributors
Thunderbird fork that ships extra fixes and features which have not been merged into the upstream release.
MPL-2.0Windows · macOS · Linux
No known warnings · checked 23 Oct 2026
Claws Mail
The Claws Mail team
Lightweight GTK email client that stores mail as plain files and adds features through a large plugin set.
GPL-3.0-or-laterWindows · Linux
No known warnings · checked 23 Oct 2026
Discord
Discord Inc.
Voice, video and text chat organised into servers and channels, with persistent rooms that stay open between sessions.
Windows · macOS · Linux
No known warnings · checked 23 Oct 2026