Developer & Data Tools
URL Encoder and Decoder
Encode and decode URLs using RFC 3986 percent-encoding or application/x-www-form-urlencoded rules.
Developer & Data Tools
Format JSON, encode URLs, convert Base64, escape HTML entities, and generate UUIDs.
Built for software engineers and API developers: validate complex JSON payloads, debug RFC 3986 URL encoding, inspect Base64 strings, escape HTML5 entities, and generate RFC 9562 v4/v7 UUIDs.
Developer & Data Tools
Base64 Encoder and Decoder
Encode UTF-8 text to Base64 or decode Base64 strings with URL-safe (RFC 4648) support.
Featured
Developer & Data Tools
JSON Formatter and Validator
Validate, beautify, minify, and sort JSON payloads with exact syntax error diagnostics.
Developer & Data Tools
HTML Entity Encoder and Decoder
Encode special characters into named or numeric HTML5 entities and decode escaped HTML safely.
v4 & v7
Developer & Data Tools
UUID Generator
Generate RFC 9562 compliant UUID v4 (random) and UUID v7 (time-ordered) identifiers in bulk.