About TheDevToolbox
A free, privacy-first collection of developer tools designed to make your daily coding tasks easier and faster.
Explore ToolsWhy Developers Love Us
Privacy First
All tools run 100% client-side. Your data never leaves your browser.
Lightning Fast
No server round-trips. Process data instantly with zero latency.
Always Free
No sign-ups, no subscriptions, no hidden costs. Free forever.
Developer Focused
Built by developers, for developers. Tools you actually need.
What We Offer
From formatting code to generating test data, we've got you covered with tools for every part of your workflow.
Formatters
JSON, SQL, HTML, CSS, XML, YAML
Encoders
Base64, URL, HTML entities, JWT
Generators
UUIDs, passwords, QR codes, mock data
Converters
Colors, timestamps, number bases
Design Tools
Gradients, shadows, color palettes
Team Tools
Planning poker, retrospectives, trivia
AI Tools
Token counter, prompt library, model comparison
Dev Utilities
Regex tester, diff checker, API tester
Our Mission
We believe developer tools should be free, fast, and private. Every tool on TheDevToolbox runs entirely in your browser - your data never leaves your device.
No sign-ups, no subscriptions, no tracking of your actual data. Just bookmark it and use it whenever you need it. We built this because we were tired of searching for reliable tools scattered across dozens of websites.
TheDevToolbox is built with modern web technologies: Next.js, TypeScript, and Tailwind CSS. It's designed to be fast, accessible, and work on any device.
Built with Love for Developers
Have a suggestion for a new tool or found a bug? We'd love to hear from you.