🔒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

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.

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

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.

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

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

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.

Off The Record v4 with NIST Level 5 post-quantum crypto ML-KEM-1024 brace rotation, ML-DSA-87 hybrid auth, Rust double ratchet. Runs on Termux over I2P. One Python file + C extensions.

ChatGPT based AI assistant to add to your Signal conversations

A lightweight, privacy-focused real-time chat application that implements end-to-end encryption using OpenPGP standards. Built with security and user privacy as core principles, this application ensures that your conversations remain completely private and secure.

Davell Message System is a decentralized peer-to-peer communication platform focused on absolute anonymity and security. It uses the Signal Protocol for end-to-end encryption and operates through the Tor network, hiding users’ IP addresses and metadata.