8 free browser-based tools for developers, designers, and creators. No sign-up, no tracking, works offline.
| Tool | Description |
|---|---|
| Invoice Generator | Create professional PDF invoices instantly |
| QR Generator | Generate QR codes for URLs, text, WiFi, vCards |
| JSON Formatter | Format, validate, and minify JSON data |
| Password Generator | Create secure passwords with custom rules |
| Color Palette | Generate and explore color palettes |
| Meta Tag Generator | Create SEO meta tags for your pages |
| Markdown Editor | Write and preview Markdown in real-time |
| Word Counter | Count words, characters, sentences, and reading time |
- 100% client-side — your data never leaves your browser
- No sign-up or account required
- Works offline after first load
- Mobile-responsive design
- Fast and lightweight
- Pure HTML, CSS, and JavaScript
- No frameworks, no dependencies
- Hosted on GitHub Pages
Visit the live site or clone this repo and open index.html in your browser.
git clone https://github.com/christian140903-sudo/devtoolkit.git
cd devtoolkit
open index.htmlMIT