Developer Tools
Encoders, formatters, hashes and identifiers for day-to-day engineering work, all computed client-side.
9 tools
JSON Formatter & ValidatorPretty-print or minify JSON, surface parse errors with position, then copy or download the result.Base64 EncoderUTF-8 safe Base64 encoding for text payloads and tokens.Base64 DecoderDecode Base64 back to text with clear errors on invalid input.URL Encoder / DecoderPercent-encode or decode query strings and path segments.Hash GeneratorCompute SHA-1, SHA-256 and SHA-512 digests with the Web Crypto API.UUID GeneratorGenerate cryptographically random version 4 identifiers in bulk.HTML MinifierCollapse whitespace and comments from markup while keeping pre and textarea content intact.CSS MinifierStrip comments and redundant whitespace from stylesheets.URL Slug GeneratorConvert headlines into clean, lowercase, hyphenated URL slugs.