Top ENCRYPT GitHub Repositories & Tools (2026)

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

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

The Cloud Native Application Proxy

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

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

bluetooth mesh chat, IRC vibes

BouncyCastle.NET Cryptography Library (Mirror)

Automated ACME SSL/TLS certificate management built around Azure Key Vault

🔑 Free Offline-first Password Manager

Homomorphic Encryption library and applications in Swift

A client implementation for the Automated Certificate Management Environment (ACME) protocol

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

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

DCTS is an ambitious project with the goal to offer absolute independence through software with a no-bullshit mindset completely for free and with a heavy focus on self-hosting, decentralization and ease of use.

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

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