Developer Tools
14 free tools — no signup required
Cron Expression Parser
Translate cron strings into readable schedules and next run times.
.gitignore Generator
Generate a tailored .gitignore file for your project stack.
CSV ↔ JSON Converter
Convert CSV data to JSON and back for APIs and spreadsheets.
User-Agent Parser
Decode browser, OS, and device details from a UA string.
HTTP Status Code Reference
Search HTTP status codes and read real-world guidance.
Semver Comparator
Compare semantic version strings and determine the newer release.
JSON Formatter
Format, validate and minify JSON payloads.
Base64 Encoder/Decoder
Encode and decode Base64 strings.
URL Encoder/Decoder
Encode and decode URLs for web use.
UUID Generator
Generate random UUIDs instantly.
Hash Generator
Generate MD5 and SHA hashes.
JWT Decoder
Decode and inspect JSON Web Token header, payload, and expiry — entirely in your browser.
Regex Tester
Test regular expressions with live match highlighting, group capture, and find-and-replace.
Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa — all formats, live clock.