🔒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 and chat for organizations and individuals.
A Messaging Layer Security (RFC 9420, MLS) implementation in TypeScript
Awesome privacy tools: encrypted messaging, anonymous email, VPNs, Tor, password managers, secure file sharing, browser privacy, and self-hosted privacy software.
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.
Free, open-source C#/.NET toolkit for secure encrypted message and file sharing over the web using public-key infrastructure (RSA, AES-256, SHA-256). Includes CryptoPad and OneTimePad utilities.
Strong Encryption, Exactly-Once Semantics, and Built-In Key Management for Trusted Brokers
Self-hosted, end-to-end encrypted messenger. A privacy-first alternative to Telegram, Signal, WhatsApp & Discord.
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.
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.
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.
Encrypted messaging protocol for secure server-routed communication.
Comunicador privado, invite-only e self-hosted para comunidades: mensagens E2EE efêmeras, voz e vídeo P2P, sem email, sem telefone e sem telemetria. Alternativa open source (MIT) ao Discord focada em privacidade.
Off The Record Chat CLI for XMPP & IRC with Termux + Android XMPP app. Rust OTRv4+ core with hybrid PQC: X448/ML-KEM-1024, Ed448/ML-DSA-87, ring signatures, AES-256-GCM ratchet & PQC SMP. MLS encrypred group chats, secure voice & files. Rust-isolated secrets, zeroization, and secure application wipe.
End-to-end encrypted chat for iOS/macOS with Curve25519 key agreement, AES-256-GCM, voice messages, polls, and reactions.
Local-first Agent communication runtime and gateway for A2A, MCP, E2EE messaging, REST/Webhook, and multi-agent collaboration.
A secure, anonymous, and decentralized messaging app using the Tor network. No registration, no personal information required. Perfect for privacy enthusiasts.
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.
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
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