TypeScript MD5 Hashing Library

ts-md5 is a TypeScript-first implementation of the MD5 hashing algorithm, designed for both Node.js (>=18) and browser environments. It provides functionalities for hashing Unicode and ASCII strings, supporting incremental hashing, and directly processing Files and Blobs. The library also includes advanced features like a `ParallelHasher` that leverages web workers for asynchronous file/blob hashing, improving performance in browser contexts. Its current stable version is 2.0.1, with releases showing active maintenance, including a recent major update to v2.0.0 in July 2025 that shifted to Vite for bundling. Key differentiators include its strong TypeScript typing, robust handling of various input types (strings, byte arrays, files), and built-in web worker support for computationally intensive tasks, making it a versatile choice for applications requiring MD5 checksums. It builds upon established MD5 implementations by Joseph Myers, André Cruz (SparkMD5), and Raymond Hill (yamd5.js).