About Red Cat Tools

Red Cat Tools is a growing collection of 45 free tools for PDFs, images, text, developers and everyday life. Every tool runs entirely in your web browser, which means your files are never uploaded to a server.

Why we built it

Most “free” online tools upload your documents to remote servers, add watermarks or push you towards a subscription. We think simple tasks — merging a PDF, compressing a photo, counting words — should be fast, free and private.

How it works

Each tool is written in JavaScript and runs on your own device. Once the site has loaded, it is saved by your browser so it keeps working offline. You can even install it as an app from your browser’s menu.

Made for Sri Lanka, too

Alongside everyday tools, Red Cat Tools includes tools made for Sri Lanka: Singlish to Sinhala typing, NIC decoding, a PAYE/APIT tax calculator and the Poya and public holiday calendar.

Have an idea for a new tool? Tell us.