About Devtools Box
One hub for every developer utility. Built for speed, keyboard, and privacy.
Why this exists
Every developer keeps a folder of bookmarks to single-purpose dev-tool sites — JSON formatters, JWT decoders, timezone converters, hash generators, regex testers. They work, but each one is a different site, with different keyboard shortcuts, different layouts, and pop-ups begging you to sign up or install a browser extension. Some quietly POST your input to a third-party server so they can log what you paste.
Devtools Box collapses that folder into one page. Currently 52 tools across 12 categories, with a consistent layout, a single ⌘K shortcut to jump anywhere, and zero telemetry on anything you type.
How it's built
- 100% client-side transforms. Every tool runs in your browser tab. The server only serves static HTML and JavaScript — it never sees the strings you paste.
- Server-rendered pages, indexable by design.Each tool has a real URL, proper metadata, breadcrumb & FAQ structured data, and long-form context for search engines and LLMs.
- Keyboard-first. ⌘K / Ctrl+K / / opens a fuzzy-search palette that covers every tool and category.
- Shareable state via URL hash. Tool inputs encode into
#…fragments, which browsers never transmit to servers — so even the share link stays between you and the recipient. - No ads, no account, no upsell. Just tools.
What's next
Tools land weekly. Next up: the AI category (tokenizer, LLM cost calculator, prompt diff), the image category (base64 image viewer, QR generator), and a growing set of code-adjacent helpers (SQL formatter, cron builder extras). See /tools for the current catalogue.
About the author
Devtools Box is built and maintained by Max Dutkin. Feedback, requests, bug reports welcome — drop a note via the contact channels you can find on the privacy page.
Read about data handling on the privacy page.