Developer
Format, encode, test and generate — the everyday dev toolbox.
JSON Formatter
Format, beautify and minify JSON with instant validation — all in your browser.
DeveloperBase64 Encoder / Decoder
Encode text to Base64 or decode it back — instantly and privately in your browser.
DeveloperURL Encoder / Decoder
Encode or decode URLs and query components instantly and privately in your browser.
DeveloperHash Generator
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text — privately in your browser.
DeveloperJWT Decoder
Decode and inspect JWT header, payload and expiry — entirely in your browser.
DeveloperCron Expression Builder
Build and understand cron schedules in plain English, with the next run times.
DeveloperUUID Generator
Generate UUID v4, v7 and ULID identifiers in bulk — instantly and locally.
DeveloperText Diff Checker
Compare two texts and see exactly what changed — line by line or word by word.
DeveloperJSON to TypeScript
Generate TypeScript interfaces from any JSON — instantly and locally.
DeveloperRegex Tester
Test regular expressions live, highlight every match, and understand what they do.
DeveloperSQL Formatter
Beautify and format messy SQL queries — across dialects, in your browser.
DeveloperMarkdown Editor
Write Markdown with a live preview and export clean HTML.
Developer