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 — 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.