Pick the language CatRealm should use on this page.
Pick the build that suits you. Both connect to the same CatRealm.
Run your own server. Your data stays on your hardware - no third-party dependencies.
Instant messaging with channels, threads, typing indicators, and media sharing.
Local accounts, central CatRealm accounts, or mixed mode - your server, your rules.
See how CatRealm stacks up against other popular communication platforms
| Feature | CatRealm | Discord | Revolt | Slack | Element | TeamSpeak 3 | TeamSpeak 6 | RootApp | Mumble |
|---|---|---|---|---|---|---|---|---|---|
| Requires AI Scan / Government ID | ✗ | ✓ | ✗ | ✗ | ✗ | ✗ | ✗ | ✗ | ✗ |
| Self-Hosted | ✓ | ✗ | ✓ | ✗ | ✓ | ~ | ~ | ✗ | ✓ |
| Open Source | ✓ | ✗ | ✓ | ✗ | ✓ | ~ | ✗ | ✗ | ✓ |
| Real-Time Text Chat | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Voice Chat | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Video Chat | ✓ | ✓ | ✓ | ✓ | ✓ | ✗ | ✓ | ✓ | ✗ |
| Screen Sharing | ✓ | ✓ | ✓ | ✓ | ✓ | ✗ | ✓ | ✓ | ✗ |
| Channels & Threads | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Direct Messages | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✗ |
| Role-Based Permissions | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ~ |
| File Sharing | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✗ |
| Custom Emojis | ✓ | ✓ | ✓ | ✓ | ✓ | ✗ | ✗ | ✓ | ✗ |
| Custom Themes | ✓ | ~ | ✓ | ~ | ✓ | ~ | ✓ | ✓ | ~ |
| End-to-End Encryption | ✓ | ~ | ✗ | ~ | ✓ | ✗ | ~ | ✓ | ✗ |
| Cross-Platform (Win/Mac/Linux) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Web Client | ✓ | ✓ | ✓ | ✓ | ✓ | ✗ | ✓ | ✓ | ✗ |
| Mobile Apps | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| No License Costs | ✓ | ✓ | ✓ | ~ | ✓ | ✗ | ✗ | ✓ | ✓ |
| No User Limits | ✓ | ✓ | ✓ | ~ | ✓ | ✗ | ✗ | ✓ | ✓ |
| Data Privacy (You Control Your Data) | ✓ | ✗ | ✓ | ✗ | ✓ | ✓ | ✓ | ✗ | ✓ |
| Flexible Authentication | ✓ | ✗ | ✗ | ~ | ✓ | ✓ | ✓ | ✗ | ✓ |
| Rich Markdown Support | ✓ | ✓ | ✓ | ~ | ✓ | ✗ | ~ | ✓ | ✗ |
Biased Comparison? Well of course. We made the comparison that most users want to see. Also you wanting a feature or QoL change? Make a request! We aren't afraid to add features that should not be locked behind a paywall!