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11 instant developer utilities. Every computation runs in your browser - nothing leaves your machine. Precise, quiet, fast.
JSON Formatter
Format, minify & validate JSON
Base64
Encode / decode Base64 (UTF-8 safe)
JWT Decoder
Decode header & payload (no verify)
Hash Generator
SHA-1/256/384/512 hex digests
Regex Tester
Test patterns, see matches & groups
Cron Parser
Describe & preview next run times
URL Encode
Encode / decode URI components
UUID Generator
Generate v4 UUIDs
Timestamp
Unix epoch to ISO date
Case Converter
camel / snake / kebab / Title
Color Converter
HEX / RGB / HSL