How it works
- Tap “New conversation” to create a link.
- Send the link to someone through WhatsApp, Telegram, Signal, email, or any other channel.
- The other person opens the link and an encrypted chat starts immediately.
- Optionally compare a safety number to confirm no one is in the middle.
- Close the tab — the conversation, keys, and all data disappear.
Not everyone you talk to belongs in your contacts. A stranger, a one-time exchange — talk, then close the tab. No history, no saved chat, nothing added to anyone’s contacts.
Key features
End-to-end encrypted
ECDH key exchange with AES-256-GCM via the Web Crypto API. Every conversation generates fresh keys, and a safety number lets both sides confirm no one is in the middle.
No identity
No phone number, no email, no account, no contacts. No registration of any kind. You’re nobody — by design.
Text & voice
Send text messages and voice notes up to 30 seconds, all encrypted end-to-end. No photos, video, or file sharing — by design.
Self-destruct timer
Set a timer when you create a conversation. When time’s up, the entire room is destroyed on both sides — even if nobody closes the tab.
Runs anywhere
Works in any modern browser — phone, laptop, or tablet — including Tor Browser. Nothing to install. (Voice notes may not work in Tor Browser.)
Small & auditable
The whole thing — app and relay combined — is small enough to read every line yourself, instead of trusting that someone audited a codebase you’ll never open. Open source on GitHub.
Best suited for
One-off conversations, sources, tips, or situations where you want minimal traces and don’t want to create accounts or add people to your contacts. Not intended for daily use, or for situations where someone powerful is specifically targeting you.
What it protects — and what it doesn’t
Arnon is built for low-friction privacy. When you send the link via WhatsApp, Telegram, or similar platforms, those services only see that a link was sent. They do not know whether a conversation took place or what was said inside Arnon.
The relay is blind — it receives only encrypted blobs and writes nothing to disk. It cannot read message content, but it can see that two parties are communicating. For stronger anonymity, use Tor Browser.
However, because the app loads fresh from the server each time, you trust the page you open. Against a targeted adversary who can compromise the server, DNS, or TLS, an installed and independently verified client (such as Signal or SimpleX) is stronger. Arnon is not designed to survive targeted server compromise. Read the full threat model →
Get started
Start a conversationFor stronger anonymity, use Tor Browser. Voice notes may not work in Tor Browser.