Best Encryption & Privacy GitHub Repositories

Usable, easy and safe pure-Rust crypto

Homomorphic Encryption library and applications in Swift

Self-hosted private chat: no cloud, no telemetry, no Big Tech. Discord alternative that runs on your own machine.

📱iOS private messenger, crypto wallet and light node to Mixin Network

📱 Android private messenger, crypto wallet and light node to Mixin Network

End-to-end encrypted notes, tasks, files, passwords, journal and bookmarks. Keyed by a 12-word BIP-39 phrase: no email, no password, no account to leak. The full client source for web, desktop and mobile is published, along with the encryption (XChaCha20-Poly1305, HKDF-SHA256, Ed25519) and the threat model, so the privacy claims are falsifiable.

Crypto, token, consensus, file, and smart contract services for a Hiero based network

ArcaneChat for Android: ⚡ Fast encrypted chats for the family

Convenient access to tick-level real-time and historical cryptocurrency market data via Node.js

Omni Browser is a secure, open-source Android browser by RebelRoot. Built on Mozilla GeckoView, it features native WebExtension support, aggressive media stream interception, a private encrypted locker, and on-device machine learning tools.

Don't Roll Your Own Crypto: fast, type-safe, pure-Rust cryptography with post-quantum support

A simple wrapper for the standard ruby OpenSSL library

:closed_lock_with_key: Server API to support End-to-End Encryption

Locally runnable server with built-in data caching, providing both tick-level historical and consolidated real-time cryptocurrency market data via HTTP and WebSocket APIs

iOS client for Proton Pass

Earn RTC crypto by contributing to the RustChain ecosystem. Bounties from 1-150 RTC. Star, code, write tutorials, find bugs.

The Pairing-based Crypto library

Close the lid and walk away — every window, desktop and terminal on your machines, live in any browser. E2E-encrypted, no open ports, no client, no account.

Self-hosted, censorship-resistant VPN with REALITY / anti-DPI obfuscation and post-quantum (X25519 + ML-KEM-768) crypto. Rust core + native Android/Windows/macOS clients. Works on networks with active DPI (Iran, China, Russia).

Rings is a structured peer-to-peer network implementation using WebRTC, Chord DHT, and full WebAssembly (WASM) support.