100% browser-side · no uploads · works offline

The PDF toolkit built for privacy

Merge, split, compress, convert, sign, redact and edit PDFs — without your documents ever touching a server. No signup, no limits, no tracking.

Browse all tools Try Merge PDF

No Signup

Start instantly, no accounts or emails.

No Uploads

Files stay in your browser, always.

Works Offline

Cached engine keeps working without a network.

Get started with tools

Click a tool to open it. Everything processes in this tab.

Loading tools…

Frequently asked questions

Are my files uploaded anywhere?

No. Every operation — rendering, merging, compressing, encrypting — happens in your browser using WebAssembly and the Canvas API. There is no backend to upload to.

How many files can I process?

As many as you like. There is no account, no quota and no watermark. Very large files are limited only by your device's memory.

Does it work offline?

Yes. Once the page and its engine are cached, all tools keep working with no network at all — useful on flights or air-gapped machines.

Can I self-host it?

The build output is a folder of static files. Serve it from any web server, S3 bucket or intranet share — no database, no server code.