PDF tools that run on your device.

Merge, compress, convert and sign. Your files are processed in your browser and never uploaded.

Your file never leaves this tab.

Every tool here runs as code inside your browser. The document is read from your device, changed in memory, and handed back to you as a download. There is no upload step and no copy on our servers.

That also means it keeps working on a plane or a slow connection once the page has loaded.

Check it yourself

  1. Open your browser developer tools and go to the Network tab.
  2. Use the tool on a file.
  3. You will see no request carrying your file anywhere.

Common questions

Are these tools really free?

Yes. There is no sign-up, no watermark and no daily limit. The site is supported by ads, which are shown only if you accept them.

Do you upload my files?

No. Every tool runs in your browser, so your documents and photos stay on your device. We have no server that receives them.

Which browsers does it work in?

Current versions of Chrome, Edge, Firefox and Safari on desktop, iPhone, iPad and Android. Very large files are easier on a computer than on a phone.

Why do some conversions look simpler than the original?

Because the work is done on your device, not on a powerful server, complex layouts in PDF to Word and Word to PDF are simplified. Each tool page says what is kept.

About index Tool

The index tool at Kyvorix is built to run 100% in your browser. Your file is read locally, processed in memory and returned as a download. No upload, no storage on our servers, works offline.

Free to use, no sign-up, no watermark. Perfect for students, offices and anyone who needs quick PDF jobs without risking privacy.

Benefits

Frequently Asked Questions

Is this tool free?

Yes, 100% free, supported by ads.

Do you upload my file?

No, everything runs in your browser offline.

Works on phone?

Yes, Chrome, Safari, Firefox on mobile and desktop.