Developer Tools
Small formatting and encoding chores interrupt real work all day long. This set covers the ones developers reach for most: reading unfamiliar JSON, decoding a token payload, escaping markup, generating identifiers and checking a regular expression against real input.
JSON Formatter
Beautify, minify and inspect JSON with clear error reporting.
JSON Validator
Check whether JSON is valid and locate the exact syntax error.
Base64 Encoder / Decoder
Encode text to Base64 and decode Base64 back to text.
URL Encoder / Decoder
Percent-encode and decode URLs, paths and query values.
HTML Entity Encoder / Decoder
Escape HTML special characters and convert entities back to text.
UUID Generator
Generate random version 4 UUIDs in bulk.
Timestamp Converter
Convert Unix timestamps to readable dates and back again.
Regex Tester
Test regular expressions against sample text with live match details.