Quick one.
I got tired of:
→ PDF tools that upload your files to random servers
→ JSON formatters that require signup
→ Tools with "free" tiers that nag you constantly
So I spent evenings building alternatives.
taptools.dev — 31 free developer tools.
Everything runs in your browser.
No upload. No server. No account needed.
What's inside
PDF tools
- Merge, split, compress
- PDF to JPG, PDF to Word
Developer utilities
- JSON formatter with auto-fix
- JWT decoder
- Base64 encoder/decoder
- Regex tester with live highlighting
- Hash generator (MD5, SHA-256, SHA-512)
- Unix timestamp converter
- cURL to fetch converter
- Cron expression parser
And more...
- QR code generator with custom frames
- Color converter (HEX, RGB, HSL, CMYK)
- Password generator
- Diff checker
- UUID generator
- Word counter
The privacy angle
Most of these tools exist already.
The difference is where your data goes.
When you merge a PDF on ilovepdf your
file travels to their servers. You trust
them to delete it. You have no way to verify.
On taptools everything stays on your device.
The PDF never leaves your browser.
Same for passwords, hashes, JWT tokens.
Built with
- Next.js 14 + TypeScript
- Tailwind CSS
- Vercel
- pdfjs-dist + pdf-lib
- Web Crypto API
Would love your feedback!
What tools do you use daily that you wish
had a privacy-first browser-based version?
👇 Drop it in the comments
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