Open Source · Zero Server · E2E Encrypted
Private chats on
any platform
CryptoChat is a browser extension for end-to-end encryption. Your keys never leave your device.
AES-256-GCM
Every message encrypted with a unique random key. Platforms only see ciphertext.
Keys stay local
Your private key never leaves your browser. Stored in IndexedDB, never synced.
Group encryption
One message, multiple recipients. Each gets their own encrypted key slot.
GPG compatible
Import OpenPGP public keys from Kleopatra or any GPG keychain.
Support the project
Buy me a coffee ☕
CryptoChat is free, open source, and has no ads or subscriptions.
If it's useful to you, a small Bitcoin donation keeps development going.
bc1qrr2tcdmz9ktf3ss73gc6g427k7x90zvdn5jd59
Open in Bitcoin wallet