Hash Generator

Hash text with SHA-1, SHA-256, SHA-384, SHA-512, or MD5.

Algorithm

Calculated Result

—

Formula: Web Crypto digest · MD5 local

About this calculator

Checksums and cache keys often need a digest. SHA-256 is the default. MD5 is only for legacy checksums — do not use it for passwords.

FormulaWeb Crypto SHA-1/256/384/512 · compact MD5

SHA families use crypto.subtle.digest. MD5 is a small local implementation. Output is lowercase hex.

Generate cryptographically random UUID version 4 strings.

Beautify, minify, and validate JSON without sending it to a server.

Encode or decode UTF-8 text as RFC 4648 Base64.

Convert CSV tables to JSON objects and back.