🔒True end-to-end encrypted (E2EE) chat system in web. 🔒真正的网页端到端加密聊天系统

Anonymous, end-to-end encrypted tip lines for organizations and individuals.

A Messaging Layer Security (RFC 9420, MLS) implementation in TypeScript

Spixi is a decentralized, post-quantum secure communications super-app with messaging, calls, file sharing, a crypto wallet, and Mini Apps. Users hold their own keys, self-authenticate cryptographically, and enjoy true end-to-end encryption with no central servers.

Awesome privacy tools: encrypted messaging, anonymous email, VPNs, Tor, password managers, secure file sharing, browser privacy, and self-hosted privacy software.

Strong Encryption, Exactly-Once Semantics, and Built-In Key Management for Trusted Brokers

NextPGP is a elegant and powerful, modern online PGP tool built with Next.js. It can generate keys, manage keyrings, encrypt and decrypt messages securely and effortlessly.

This is a client-server app in C++ that encrypts messages using ChaCha20-Poly1305 and uses X25519 for secure key exchange. It supports bidirectional TCP communication and configuration via XML.

True peer-to-peer encrypted chat where messages vanish like ghosts. No servers, no storage, no accounts. Messages travel directly via WebRTC and exist only in memory. Self-destructing messages, panic button, file sharing, and zero tracking. Open source privacy-first messaging.

End-to-end encrypted chat for iOS/macOS with Curve25519 key agreement, AES-256-GCM, voice messages, polls, and reactions.

Termux IRC client with OTRv4 & NIST Level 5 post-quantum crypto: ML-KEM-1024 brace rotation, ML-DSA-87 hybrid auth, Rust SMP & double ratchet. Runs over I2P/Tor/TLS 1.3. One-command install, zero traces on exit.

A Python-based tool for encrypting and decrypting messages using the cryptography library's Fernet method. The program features a simple command-line interface and automatic secret key generation for secure data protection.

A secure, anonymous, and decentralized messaging app using the Tor network. No registration, no personal information required. Perfect for privacy enthusiasts.

Swift library for DIDComm V2 protocol with message encryption/decryption, signing, DID authentication, and advanced routing for secure, decentralized communication.

Golang implementation of GlobalPlatform SCP03

It is a simple local tool for testing end-to-end encryption (E2EE) between two parties

Security-focused cryptographic core implementing ECDH key exchange and AEAD-based message protection.

Secure messaging without smartphones. Native SimpleX Protocol implementation in C for embedded systems. Features Hardware Abstraction Layer supporting multiple MCU platforms, hardware security modules, and three device tiers from maker-friendly to state-level protection.

Signal-level E2E encryption for any app. One API key, one hook. Zero cryptography knowledge required.

Secure P2P communication platform with E2E encrypted video calls, messaging, and file sharing. Built on WebRTC, Hyperswarm DHT and Nostr protocols. No central servers - your data stays on your devices.