No phone number. No email. No address book scraping. Engineered with AES-256-GCM authenticated encryption and ECDH P-256 key agreement for uncompromising privacy at 120 FPS.
Privacy isn't a promise we make in our terms of service — it is an immutable mathematical law enforced directly on your device.
All messages, HD photos, voice notes, and text effects are encrypted client-side with AES-256-GCM before touching the network. The server only sees scrambled mathematical ciphertext.
No phone numbers to SIM-swap. No SMS OTP leaks. Pick a username and password — that derives your master cryptographic key. Total, uncompromising anonymity.
Protected by 100,000 computation loops and unique 32-byte cryptographic salts per user with constant-time byte verification against GPU/ASIC brute-forcing.
Experience real-time character-by-character live typing indicators streaming at full 120 FPS with 0.03ms sub-millisecond hardware encryption.
Encrypted instantly in your browser via Web Crypto API in ~0.04ms.
Facts speak louder than words. See how our zero-knowledge architecture compares against mainstream platforms.
| Security & Privacy Dimension | FastChat Edge | Telegram | Instagram DM | Signal | |
|---|---|---|---|---|---|
| No Phone Number Required | ✓ 100% Anonymous | ✗ Requires Phone | ✗ Requires Phone | ✗ Meta Identity | ✗ Requires Phone |
| Default End-to-End Encryption | ✓ AES-256-GCM | ✗ Plaintext Cloud | ✓ Signal Protocol | ✗ Readable by Meta | ✓ Signal Protocol |
| Zero-Knowledge Database | ✓ Blind Server | ✗ Readable Server | ~ Metadata Logs | ✗ Full Ad Profiling | ✓ Blind Server |
| Encrypted Live Typing Peek (120 FPS) | ✓ 0.03ms Hardware Stream | ✗ No Live Peek | ✗ No Live Peek | ✗ No Live Peek | ✗ No Live Peek |
| Zero Ad Trackers / Telemetry | ✓ Zero Analytics | ✗ Has Ads / Tracking | ✗ Meta Ad Sync | ✗ Heavy Ad Profiling | ✓ Clean |
| Salted Password Hashing | ✓ PBKDF2-SHA512 | ✗ SMS OTP | ✗ SMS OTP | ✗ Meta OAuth | ✗ SMS OTP |
"In FastChat, your password is your master cryptographic key. We don't have backdoors, we don't store plain text passwords, and we don't hold your private decryption keys. Even under court order, subpoena, or server seizure, we cannot read your chats because we mathematically do not possess the keys to decrypt them."
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