MD5 Generator

md5

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

Function Signature

md5(str: string): string

Parameters

Return Value

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

Example Usage

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);