About CodeCraft
Free, fast, privacy-first developer tools — open and use, no sign-up required.
Who We Are
CodeCraft is a free online toolbox built for developers by developers. We know the frustration of searching for a quick JSON formatter, a timestamp converter, or a Base64 decoder — only to land on slow, ad-heavy sites that require sign-ups or send your data to unknown servers. CodeCraft was created to fix that: open any tool, use it instantly, close it when done. That's it.
Our Story
The idea for CodeCraft started from a simple observation: most developer utility sites are either too slow, require unnecessary accounts, or secretly upload your data. We set out to build a comprehensive toolbox where every tool runs entirely in the browser using client-side JavaScript — no server round-trips, no data storage, no accounts. What began as a handful of JSON and encoding tools has grown into a collection of 30+ utilities covering data formatting, encoding, conversion, generation, image processing, and network debugging.
What We Offer
CodeCraft currently provides tools across six categories:
Data & Formatting
JSON Formatter, JSON Diff, JSON Path, JSON Schema Validator, JSON Visualizer, JWT Decoder, JSON→CSV, YAML↔JSON, Markdown Editor, Text Diff
Encoding & Crypto
Base64 Encoder/Decoder, URL Encoder/Decoder, Hash Generator (SHA-1/256/512), HTML Escape/Unescape
Conversion
Timestamp Converter, Base/Radix Converter, Color Converter (HEX/RGB/HSL), Unit Converter, Cron Parser
Generation
UUID v4 Generator, QR Code Generator & Scanner
Image & Media
Image to ICO, Image Compressor, Barcode Scanner, M3U8 Player
Network & Debugging
IP Lookup, API Tester, Stopwatch
New tools are added regularly. If there's a tool you'd like to see, let us know through the contact page.
Our Principles
- Privacy First: All tools run locally in your browser using client-side JavaScript. Your data — JSON payloads, Base64 strings, images, passwords — never leaves your device. We do not log inputs or outputs.
- Blazing Fast: Deployed on Cloudflare's global CDN with edge caching, CodeCraft loads in under a second from anywhere in the world. There are no server-side processing delays because all computation happens on your device.
- Continuously Improving: We ship new tools and improvements every week based on real developer feedback. Our roadmap is driven by what developers actually need, not by marketing priorities.
- Free Forever: All core tools are permanently free with no paywalls, no feature gates, and no hidden charges. We sustain development through non-intrusive advertising. If you find CodeCraft valuable, sharing it with a colleague is the best way to support us.
Technology
CodeCraft is built with React 18, TypeScript, Tailwind CSS v4, and Vite. It is deployed on Cloudflare Pages for global CDN performance and zero cold-start latency. All cryptographic operations (SHA hashing, UUID generation) use the Web Crypto API — the same battle-tested API used by browsers for secure communications. The codebase is designed as a progressive web app with offline capability for tools that don't require network access.
Contact
For feature requests, bug reports, or collaboration inquiries, feel free to reach us via the contact page. We read every message and typically respond within 48 hours.