Privacy passport
- No tracking
- Minimal
- Open source
- Yes
- Only you can read it
- Partly
- No account
- Needed
- Free
- Free plan
2 of 5 checks
- Android
- iPhone
- Mac
- Windows
- Linux
- Web
Private alternatives to Slack
Messages aren't end-to-end encrypted; Slack and workspace admins can access them, and usage data is collected.
Our first swap
6 more options
Zulip
Service
Team chat organised by topic threads, fully open source, hosted for you or on your own server.
- Tracking not stated
- Open source
- Provider can read it
- Account needed
- Free plan
- Android
- iPhone
- Mac
- Windows
- Linux
- Web
Mattermost
Self-hosted
Slack-style workspace with channels, threads and integrations that companies run on their own servers.
- Minimal tracking
- Partly open
- On your server
- Account needed
- Free plan
- Android
- iPhone
- Mac
- Windows
- Linux
- Web
Nextcloud Talk
Self-hosted
Chat, calls and screen sharing built into Nextcloud, running on a server you or your organisation control.
- No tracking
- Open source
- On your server
- Account needed
- Free
- Android
- iPhone
- Mac
- Windows
- Linux
- Web
Rocket.Chat
Self-hosted
Open-source team chat you can host yourself, with optional end-to-end encrypted rooms and guest access.
- Has trackers
- Partly open
- On your server
- Account needed
- Free plan
- Android
- iPhone
- Mac
- Windows
- Linux
- Web
Twake Chat
Service
French team and family chat built on Matrix, with end-to-end encryption and the option to self-host.
- Tracking not stated
- Open source
- End-to-end encrypted
- Account needed
- Free plan
- Android
- iPhone
- Mac
- Windows
- Linux
- Web
Campfire
Self-hosted
Simple group chat with rooms and direct messages from 37signals, free to install on your own server.
- No tracking
- Open source
- On your server
- Account needed
- Free
- Web
Team chat
Microsoft Teams
Discord