I built CodeToolkit — 14 free dev tools, no login, no BS
Every developer has been there.
You need to quickly decode a JWT token or format some JSON. You Google it, click the first result, and boom — "Sign up to continue." Or worse, "Watch this ad to see your result."
I got tired of it. So I built my own.
**What is CodeToolkit
**?
CodeToolkit is a collection of 14 free developer tools that run entirely in your browser. No login. No tracking. No server. You paste your input, you get your output. That's it.
Link: https://codetoolkit-lime-two.vercel.app
Tools included
Encoding
- Base64 Encoder/Decoder
- URL Encoder/Decoder
- HTML Entity Encoder
JSON
- JSON Formatter
- JSON Minifier
- JSON Validator
CSS
- CSS Minifier
- CSS Beautifier
Converters
- Color Converter (HEX, RGB, HSL)
- Unix Timestamp Converter
- Markdown to HTML
Generators
- UUID Generator
- JWT Decoder
- Regex Tester
Tech stack
- Pure HTML, CSS, Vanilla JavaScript
- Zero frameworks, zero dependencies
- Hosted on Vercel
- Two external libraries only — marked.js for Markdown, js-beautify for CSS
Why no framework?
Simple — faster load time, works offline, zero build step. A dev tools site should be fast. Nobody wants to wait for React to hydrate just to encode a Base64 string.
What's next?
Planning to add more tools every week. Some ideas:
- Hash Generator (MD5, SHA1, SHA256)
- Diff Checker
- CSV to JSON converter
- HTML Formatter
What tools do YOU wish existed? Drop them in the comments — I'll build them.
If this helped you or you find yourself using it, share it with a dev friend who's tired of sign-up walls too.