HTML Tools
Browser-native utilities for developers. No installs, no servers, no tracking.
HTML Tools is a collection of browser-native developer utilities — everything runs client-side with no backend, no installs, and no tracking. Open a tool, use it, close the tab.
I kept running into situations where I needed a quick utility — format some JSON, merge a couple of PDFs, compress an image — and every online option was either slow, ad-heavy, or required an account. I knew what I wanted, but building 40+ tools from scratch felt out of reach. With AI assistance, I was able to ship this in a way that simply wasn’t practical for me before. Each tool is a standalone page: no framework overhead, no shared state, just the utility doing its job.
✨ Features
- JSON tools — formatter, diff, sorter, schema generator, JSON-to-TypeScript, JSON-to-YAML, CSV-to-JSON
- PDF tools — merger, splitter, compressor, watermark, page manager, PDF-to-image, image-to-PDF, signature pad
- Image tools — compressor, resizer, cropper, converter, watermark, SVG rasterizer
- Code tools — snippet-to-image, SVG-to-JSX, regex tester, text diff, Markdown preview, JWT decoder
- Generators — QR code, UUID, lorem ipsum, avatar, favicon, OG image builder, gradient, blob, waves
- Utilities — Cron decoder, semver checker, user-agent parser, meta tag preview, Pomodoro timer, MP3 tag editor, wheel of names
- All client-side — nothing is sent to a server; your data stays in your browser
- No login required — every tool works immediately without an account
🗂️ Tech Stacks
- Vanilla JavaScript
- Tailwind CSS v4
- Parcel 2
- Bun
🔗 Links
- Website: tools.mazipan.space
- Repository: mazipan/html-tools
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