Format, validate, and prettify JSON instantly — no data leaves your browser.
Encode text to Base64 or decode Base64 strings — instantly, in your browser.
Test JavaScript regular expressions live — see matches highlighted as you type.
Generate cryptographically random UUID v4 values — instantly, in your browser.
Convert Unix timestamps to human-readable dates and back — with timezone support.
Decode JWT tokens instantly — see the header, payload, and expiration at a glance.
Generate SHA-1, SHA-256, and SHA-512 hashes from any text — client-side only.
Free Developer Tools — No Setup Required
ScriptSpot is a collection of seven essential developer utilities — JSON formatter, Base64 encoder/decoder, regex tester, UUID generator, epoch converter, JWT decoder, and hash generator. Every tool runs entirely client-side using your browser's built-in APIs: Web Crypto, TextEncoder, RegExp, and the Date API.
No data is transmitted to any server. Paste API keys, auth tokens, and private data without worrying about leakage. The tools work offline after the initial page load.
Each tool page includes detailed documentation, common use cases, and answers to frequently asked questions — so you can learn as you work, not just execute commands blindly.