L
About Little Dev Box
Free, fast, and private online tools — no signup required.
Our Mission
Little Dev Box was built with a simple mission: provide essential online tools that are free, fast, and private. No signups, no watermarks, no daily limits, no hidden charges.
Whether you need to merge PDFs, generate QR codes, convert images, or calculate your BMI — everything runs directly in your browser. Your files never leave your device.
Why Little Dev Box?
🔒
100% Private
All processing happens client-side. We never see your files.
⚡
Blazing Fast
Built on Astro for near-instant page loads and snappy interactions.
🎯
No Limits
Unlimited usage. No accounts. No daily quotas. Just tools.
📱
Works Everywhere
Responsive design that works on desktop, tablet, and mobile.
What We Offer
- 📄 PDF Tools — Merge, compress, convert, and edit PDF documents.
- 🖼️ Image Tools — Resize, crop, convert, and compress images.
- 🌐 Web Tools — QR codes, URL shortener, JSON formatter, and more.
- 🔧 Utilities — Password generator, calculators, converters, and color picker.