Top ENCRYPTION GitHub Repositories & Tools (2026)

"rsync for cloud storage" - Google Drive, S3, Dropbox, Backblaze B2, One Drive, Swift, Hubic, Wasabi, Google Cloud Storage, Azure Blob, Azure Files, Yandex Files

bluetooth mesh chat, IRC vibes

Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.

Tiny post-quantum encryption for sensitive data. Write-only by design. ML-KEM-768 + X25519 + AES-256-GCM. Please break it.

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

The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis

BouncyCastle.NET Cryptography Library (Mirror)

This is the development repository for the OpenFHE library. The current version is 1.5.1 (released on April 10, 2026).

Private photo vault for Android

🔑 Free Offline-first Password Manager

Homomorphic Encryption library and applications in Swift

📱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.

ArcaneChat for Android: ⚡ Fast encrypted chats for the family

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.

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

iOS client for Proton Pass

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

📱 Wire for iOS (iPhone and iPad)