11 tools
Developers
JSON, regex, JWT, cron, hashes, Base64: the developer toolbox.
JSON Formatter
Readable, valid, cleanly indented JSON — checked live as you type.
JSON ↔ YAML Converter
JSON to YAML, YAML to JSON — clean, instant conversion in your browser.
Base64 Encoder
Text to Base64 and back — with UTF-8 handled properly, emojis included.
URL Encoder
Clean, valid URLs — percent-encoding without picking the wrong mode.
Hash Generator
The MD5, SHA-1, SHA-256 or SHA-512 fingerprint of any text or file, in an instant.
UUID Generator
Random, spec-compliant UUID v4s — one or a hundred, copied in a click.
Regex Tester
Your regular expressions tested live — matches highlighted, groups broken down.
HTML Entities Encoder
<, &, " — HTML special characters encoded and decoded cleanly.
JWT Decoder
Header, payload, expiry — your JWT decoded in plain sight, without leaving your browser.
Cron Expression Parser
Your cron expression translated into plain English, with the next five run times.
Timestamp Converter
Unix timestamp to readable date — and back — in both local time and UTC.