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MD5 Generator

md5​

The md5 function computes an MD5 digest of the given string using a pure JavaScript implementation.

Acknowledgement

This utility is highly inspired by the algorithm used in pure-md5 package.

Function Signature​

md5(str: string): string

Parameters​

ParameterTypeDescription
strstringInput text to hash.

Return Value​

Returns the MD5 hash as a 32-character hexadecimal string.

Example Usage​

import { md5 } from 'nhb-toolbox/hash';

const hash = md5("hello");
// → "5d41402abc4b2a76b9719d911017c592"

const emptyHash = md5("");
// → "d41d8cd98f00b204e9800998ecf8427e"

const fileHash = md5("file content");
// → "d10b4c3ff123b26dc068d43a8bef2d23"

Characteristics​

  • Pure JavaScript implementation - runs on any JavaScript engine
  • Deterministic output - same input always produces same output
  • 32-character hex output - fixed length regardless of input size
  • One-way function - cannot be reversed to obtain original input
info

Does not rely on Node.js or Web APIs. Works on any JS engine

Common Uses​

  • Checksum verification
  • Data integrity checking
  • Non-cryptographic hashing
  • File fingerprinting
  • UUID v3 generation (combined with namespaces)

Security Note​

MD5 is considered cryptographically broken and unsuitable for security-sensitive applications. Use stronger hashes like SHA-256 for security purposes.

Internal Usage​

This function is used internally for UUID v3 generation:

// Used inside UUID v3
const digest = md5(namespace + name);