[!IMPORTANT] Kursal is currently in public beta. Expect bugs, missing features, and some instability!
Subscribe to the mailing list to be notified when we release a stable version.

Kursal is a peer-to-peer, end-to-end encrypted messenger. Messages are encrypted on your device and routed through a decentralized relay network. There is no central server: no one can read your messages or learn who you are talking to.

For a full technical description, read the Whitepaper.

Features

• No account - no phone number, no email.
• File transfers - no file size limit!
• Delivers offline - messages wait in an encrypted mailbox until your contact comes back.

Curious how that compares to other messengers? See our Comparison page.

Installation

macOS / Linux

curl -fsSL https://kursal.chat/install.sh | bash

Windows

powershell -c "irm kursal.chat/install.ps1 | iex"

Or download manually.

[!WARNING] This software has not been independently audited. Use at your own risk.

Roadmap

We're a small team, but you can follow what features we're building on the progress page, or check out what issues we're working on on our TODO board.

Contributing

Every kind of help counts.

• Code - Rust core, Svelte frontend. Start with CONTRIBUTING.md.
• Run a relay - more relays means a faster, harder-to-censor network. See RELAY.md.
• Translate - no coding needed, on our Weblate.
• Report a vulnerability - please read SECURITY.md first.
• Donate - on OpenCollective.

Star History

License

© KursalChat 2026. Code distributed under AGPL-3.0-only.

Visual assets (app icon, banner, etc.) are all rights reserved.

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