Private by design
Everything runs in your browser. What you type, paste or drop in stays on your device.
Free tools
Small, fast utilities, free for anyone to use. Each one runs entirely in your browser, so what you enter stays on your device.
Free, with no catch
No sign-up, no watermark, no limits, and no trial that runs out.
Open source
The code behind every tool is public on GitHub, so you can read exactly what it does.
Writing
Business & money
- Commission Calculator Flat or tiered plans with base pay and splits, plus a reverse mode that finds the sales needed to hit a target. Open
- GST Calculator Add or remove GST at any rate, with the CGST, SGST and IGST split ready for an invoice. Open
- EMI Calculator Monthly EMI, total interest, a full amortisation schedule, and exactly what prepaying saves. Open
- Margin Calculator Margin, markup and profit from cost and price, or the selling price you need for a target margin. Open
Everyday utilities
- QR Code Generator Links, Wi-Fi logins, UPI payments and contact cards as crisp QR codes. PNG or SVG, no watermark, never expires. Open
- Image Compressor Shrink, resize and convert photos to WebP, JPEG or AVIF in your browser, then download them all as a zip. Open
- Password Generator Strong random passwords, memorable passphrases and PINs from your device's secure random number generator. Open
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