Devbelt

Paste it. Clean it. Ship it. — twenty developer tools in one Chrome popup.

JSON that won't parse, a JWT you need to read, a one-line SQL query, a cron expression nobody remembers writing. Devbelt puts the twenty tools you reach for every day one keystroke away, and processes every one of them on your own machine.

Nothing you paste leaves your computer. Every tool runs locally — they all work with your network unplugged. Devbelt asks for a single permission (storage, to remember your settings) and cannot see your tabs, your history or the pages you visit.

Free forever

JSON Formatter
Base64 & Data URI
URL Encode / Decode
Case Converter
Text Cleaner

Devbelt Pro

SQL Formatter
Cron Explainer
Regex Tester
JWT Decoder
Timestamp Converter
Hash & HMAC
CSV ↔ JSON
JSON → Types
YAML ↔ JSON
Text Diff
Escape & Entities
Colour Converter
Number Base
URL Inspector
ID & Mock Data

Pro is a one-time purchase — pay once, keep it forever, nothing to cancel. It unlocks on every browser you sign in to. Try all twenty free for seven days first; no card, just an email.

Keyboard first

Alt+Shift+D opens Devbelt. Ctrl/⌘+K jumps to search — type two letters, press Enter, start pasting. Pin the tools you live in. Dark, light or follow-the-browser.