Free online developer utilities — JSON formatter, hash generator, UUID generator, Base64 encoder, URL encoder, and more. All run in your browser with no upload required.
Encode and decode Base64 strings and binary data instantly.
Generate MD5, SHA-1, SHA-256, and SHA-512 cryptographic hashes.
Format, validate, beautify, and minify JSON data with syntax highlighting.
Encode and decode URL components for safe HTTP transmission.
Generate RFC-compliant UUID v4 identifiers in bulk.
