About Dev Tools Hub
A collection of free, fast, and privacy-first developer tools — built by developers, for developers.
What is Dev Tools Hub?
Dev Tools Hub is a free online collection of developer utilities designed to make everyday technical tasks faster and easier. Every tool on this site runs entirely in your browser — no server calls, no data collection, no accounts required.
Whether you need to format a JSON response, decode a JWT token, generate UUIDs, convert timestamps, or test a regular expression, you can do it instantly without pasting your data into an unknown server.
Our Principles
- →Privacy by default: Your data never leaves your browser. We do not log, store, or transmit anything you input into our tools.
- →Always free: Core tools will always be available for free. No paywalls, no trials, no credit card.
- →Fast and lightweight: No heavy frameworks, no bloat. Tools load quickly and respond instantly.
- →Built for real developers: We build tools we use ourselves. No filler, no fluff — just practical utilities.
Available Tools
Technology
Dev Tools Hub is built with Next.js 14, Tailwind CSS, and plain JavaScript. It is optimized for performance and SEO, with a Lighthouse score above 90 across all pages. The site is hosted on Vercel and served via a global CDN for fast load times worldwide.
Who builds this?
Dev Tools Hub is an independent side project by a software developer based in Thailand, published on GitHub as techinvo. The full source code is open under the MIT license at github.com/techinvo/Tool, so you can read exactly what each tool does with your data, report a bug, or request a new tool.
We also run ToolThai (เครื่องมือไทย), a Thai-language collection of everyday utilities such as Buddhist-to-Gregorian year conversion, Thai baht text, and land area calculators.