Encryption GitHub Repositories (2026) · Open Source Tools

💚 End-to-end encrypted cloud for everything.

🧰 A zero trust swiss army knife for working with X509, OAuth, JWT, OATH OTP, etc.

A Messaging Layer Security (RFC 9420, MLS) implementation in TypeScript

A script for compiling OpenSSL for iOS Devices (iPhone, iPad, Watch, iPod Touch, AppleTV, MacCatalyst)

Modern encryption for Ruby and Rails

JSON Web Tokens: JWS, JWE and JWK.

Cryptographic javascript-functions for ethereum and tutorials to use them with web3js and solidity

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.

A self-hosted dead man's switch for delivering encrypted messages (E2EE) to your loved ones — when you're gone or unresponsive.

A cryptography/crypto library for Kotlin Multiplatform

Simple, drag-and-drop, password-based file encryption

Offline, encrypted vault for seed phrases, private keys, passwords and API keys. macOS and Windows.

An implementation of Olm and Megolm in pure Rust.

ArcaneChat for Android: ⚡ Fast encrypted chats for the family

One-Time-Secret sharing platform with a symmetric 256bit AES encryption in the browser

Provides familiar Spring abstractions for HashiCorp Vault

Process millions of records across thousands of workers.

Official Rubyzip repository

privacy focused clipboard manager with sync & encryption

Simple to use OpenPGP API based on Bouncy Castle