libsodium.js

libsodium.js is a JavaScript and WebAssembly port of the widely used libsodium cryptographic library, providing modern, high-level cryptographic functions for secure application development in web and Node.js environments. It exposes a comprehensive set of APIs for encryption, decryption, hashing, digital signatures, and key exchange, all designed to be safe and easy to use without requiring deep cryptographic expertise. The library leverages WebAssembly for improved performance, enabling near-native execution speeds within browsers and JavaScript runtimes. It is designed to prevent common cryptographic mistakes by offering secure defaults and abstractions that reduce the risk of misuse. libsodium.js is particularly useful for building secure web applications, messaging systems, and privacy-focused tools that require client-side encryption. It also maintains compatibility with the native libsodium library, allowing interoperability across different platforms and languages.