Every PDF tool you need, in one place

Merge, split, compress, convert and edit PDF files free. 100% private: your files are processed in your browser and never uploaded to any server.

100% Free No file upload — works in your browser No registration required
Explore all tools How it works
36Free tools
12Languages
0Files uploaded
100%In your browser

All PDF Tools

36 free tools to work with PDF files. Pick a tool to get started.

Drag, drop, done

No manuals and no learning curve. Drop your files onto the page, choose your options, and download the result in seconds — every tool works the same simple way.

Explore all tools

Your documents never leave your device

Unlike other PDF sites, ZiroPDF never uploads your files to a server. All processing runs locally in your browser — perfect for contracts, invoices, medical records and any confidential document.

Privacy Policy

Every device, every language

ZiroPDF works on Windows, Mac, Linux, Android and iOS in 12 languages. No installation, no account — open the site and start working right away.

All PDF Tools

Your files stay private

All processing happens locally in your browser. Files never leave your device.

Fast and free

No queues, no limits, no watermarks added. Use every tool as often as you like.

Works everywhere

Use ZiroPDF on Windows, Mac, Linux, Android and iOS — any modern browser works.

Secure by design

Because nothing is uploaded, there is nothing to leak. Close the tab and it is gone.

Why choose ZiroPDF for your PDF work?

PDF is the universal format for sharing documents, but working with PDF files usually means installing heavy desktop software or uploading sensitive documents to unknown servers. ZiroPDF takes a different approach: every one of our 36 tools runs entirely inside your web browser using modern web technology.

When you merge contracts, compress a report, or convert scanned images into a PDF with ZiroPDF, your files are opened and processed locally on your own device. Nothing is transmitted over the internet, which makes ZiroPDF one of the most private ways to work with documents online — ideal for contracts, invoices, medical records, school work, and any other confidential material.

How it works

1

Choose a tool

Pick from 36 tools: merge, split, compress, rotate, convert, watermark and more.

2

Add your files

Drag and drop files or browse from your device. They stay on your computer.

3

Download the result

Processing happens instantly in your browser. Download your new file right away.

Frequently asked questions

Is ZiroPDF really free?
Yes. All 36 tools are completely free to use, with no hidden limits, no forced sign-up, and no watermarks added to your documents. The site is supported by advertising.
Are my files uploaded to a server?
No. ZiroPDF processes your files locally in your web browser using JavaScript. Your documents never leave your device, and we never see, store, or have access to their content.
Is there a file size limit?
There is no artificial limit. Because processing happens on your own device, the practical limit depends on your computer's memory. Most documents up to a few hundred megabytes work smoothly.
Do I need to install anything?
No installation is required. ZiroPDF works in any modern browser — Chrome, Firefox, Edge, and Safari — on desktop, tablet, and mobile.
Can I use ZiroPDF for commercial work?
Yes. You are free to use every tool for personal, educational, and commercial purposes.