CryptoSwift is a growing collection of standard and secure cryptographic algorithms implemented in Swift

A native implementation of TLS in Javascript and tools to write crypto-based and network-heavy webapps

Practical Cryptography for Developers: Hashes, MAC, Key Derivation, DHKE, Symmetric and Asymmetric Ciphers, Public Key Cryptosystems, RSA, Elliptic Curves, ECC, secp256k1, ECDH, ECIES, Digital Signatures, ECDSA, EdDSA

Safely pass trusted data to untrusted environments and back.

One Time Password (OTP) / 2FA for Node.js and Browser - Supports HOTP, TOTP and Google Authenticator

A JavaScript/TypeScript implementation of the complete Secure Hash Standard (SHA) family (SHA-1, SHA-224/256/384/512, SHA3-224/256/384/512, SHAKE128/256, cSHAKE128/256, and KMAC128/256) with HMAC.

Single Packet Authorization > Port Knocking

Lightning fast hash functions using hand-tuned WebAssembly binaries

A simple, semantic and developer-friendly crypto package for golang

Audited & minimal JS implementation of hash functions, MACs and KDFs.

Open Source License Key Generation and Verification Tool written in Go

Fast and dependency-free cryptographic hashing library for node.js and browsers (supports MD5, SHA1, SHA256, SHA512, RIPEMD, HMAC)

Usable, easy and safe pure-Rust crypto

✅ .NET crypto done right. Professionally audited.

Portable C++ hashing library

编码转换、摘要(hash)、加解密（MD5、SHA1、SHA256、SHA3、SM3、HMAC、DES、3DES、AES、SM4）

HMAC authentication for Rails and HTTP Clients

A modern and easy-to-use cryptographic library for .NET based on libsodium

Go JWT signing, verifying and validating

Guidance on implementing cryptography as a developer.