Testnet · ZeroChain

Talk. Pay.
Leave no trace.

Zero Chat is a private messenger with a crypto wallet inside. Claim your @handle as an NFT nobody can take from you, chat end-to-end encrypted, run groups and channels, and send private payments right in the conversation. Nothing is stored.

⬇ Download for ChromeTry the web preview
S
@satoshi_fanEnd-to-end encrypted · sealed sender · ⏱ 5 minutes
You set messages to disappear after 5 minutes
gm, did the payment go through?⏱ 4:51 · 12:04
sending now, privately⏱ 4:58 · 12:05 ✓
Private payment10 zkTRACESent through Shield as a ZeroLink
claimed ✓ nobody can link it to you⏱ 4:59 · 12:06
@

Your handle is an NFT

Mint @yourname on ZeroChain. Only your wallet can move it or change its keys. The small zkTRACE fee is burned. Ethereum minting arrives with mainnet.

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End-to-end encrypted

X25519 + XChaCha20-Poly1305, signed with Ed25519. The relay sees ciphertext only and never learns who sent a message (sealed sender).

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Nothing is stored

Messages live only in memory. Lock or close the session and they are gone. Offline messages wait encrypted for at most 24 hours.

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Disappearing messages

Set a timer per chat, from 30 seconds to a week. Both sides delete the message when it runs out.

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Groups and channels

Like Telegram, but encrypted. Groups where everyone writes, channels where only you post. Invite by @handle or by a link whose keys never touch a server.

$

Wallet, Shield, private swap

A full wallet for ZeroChain and Ethereum. Pay inside a chat through Shield, swap privately on ZeroDex, share ZeroLinks.

Install in Chrome

  1. Download zero-chat-extension.zip and unzip it.
  2. Open chrome://extensions and switch on Developer mode.
  3. Click “Load unpacked” and pick the unzipped folder.
  4. Click the Zero Chat icon. Create a wallet, claim your @handle, start chatting.
Honest status. Zero Chat runs on ZeroChain testnet. The encryption uses audited libraries (noble), but the protocol itself is not audited yet, and forward secrecy against a stolen identity key (Double Ratchet) is the next step. Your handle and its public keys are public by design so people can find you; who you talk to is not. A recipient can always take a screenshot.