Btwinus

Anonymous encrypted chat via a link.
No account. No server. No history.

or join an existing one
How does this work? ↓

🛡 Encryption standard

We put military-grade encryption
in a browser link. No app. No account. No server.

Until now, this level of encryption required apps, accounts, and trust in a company. Signal needs your phone number. PGP needs software. Enterprise tools need registration. Btwinus puts AES-256 end-to-end encryption directly in a shareable link. Anyone can use it, nothing is stored, and no one is in between.

AES-256-GCM Cipher
PBKDF2 · 100k Key derivation
DTLS 1.3 Transport
Zero-knowledge Architecture
WebRTC P2P No relay server

Live demo

Watch it happen in real time

Alice and Gradi K. starting a private chat, no accounts, no setup

Btwinus
Alice
Phone call
Btwinus
Gradi K.

How it works

1

Start a chat

Click "Start a new chat". You instantly get two things: an encrypted invite link and a passphrase.

2

Share them separately

Send the link via WhatsApp, email, or any app. Send the passphrase a different way: a phone call, SMS, or say it in person. Keeping them apart means nobody can intercept both.

3

They open the link & reply

The other person opens your link, types the passphrase, and gets a reply link that is automatically copied. They send it back to you.

4

Paste & you're connected

Paste their reply link and you're instantly connected. Everything is end-to-end encrypted. No accounts, no servers, no history. Gone when you close the tab.

Who uses Btwinus

Journalists & sources

Receive anonymous tips and communicate with whistleblowers without leaving a server trail. Nothing is stored, not even metadata.

Lawyers & clients

Privileged conversations that disappear on close. No law firm server, no cloud provider, just a direct encrypted connection.

Secure negotiations

Discuss sensitive terms anonymously (salary, deals, disputes) with no transcript and no identity required.

Anonymous feedback

Employees, students, or customers send honest feedback without worrying about identity. No account means no trace.

Sending passwords & secrets

Share a password, API key, or crypto seed phrase once, directly browser-to-browser. Far safer than email, Slack, or WhatsApp.

Private one-on-one support

Crisis lines, peer support, therapy pre-sessions. Temporary secure chat that leaves no history behind.