JSON, Base64, hashes, JWT, QR, PDF, DNS lookup, IP lookup, file checksum and more — a clean, fast, private workbench for the things you build every day. No signup, no servers, no tracking.
Polished, focused tools for the daily grind. Pick a category to jump in.
Hand-picked utilities used millions of times this year.
Every keystroke is processed locally — no round-trips, no waiting, no surprises.
Live processing as you type. No buttons to click, no spinners, no waiting on a backend.
Your data never leaves your device. Everything runs in your browser, even offline.
Cmd+K to search, fast tab order, full accessibility — the way devs actually work.
Installable as a PWA so it shows up on your dock — and keeps working without WiFi.
Carefully tuned palettes for long sessions. We respect your system preference.
No popups, no “sign up to continue.” Just clean tools that do one thing well.