Free PDF tools by mwai

PDF tools that never upload your files

Merge, split, compress, sign and convert PDFs for free. The work happens inside your browser, on your own phone or computer.

Your files stay on your device. Nothing is uploaded: the PDF work happens inside your browser, so not even mwai can see your files.

Pick a tool

11 tools, all free

Private by design

  • No uploadFiles are handled on your own device, never on a server.
  • FreeNo limits, no watermark on your files, no ads.
  • No sign-upNo account, no email, no tracking cookies.
  • Phone and computerWorks in any modern browser.

How can it work without uploading?

Most PDF websites send your file to their computers (servers), change it there, and send it back. That means a copy of your bank statement, ID card or contract sits on someone else's computer, at least for a while.

mwai PDF Tools works differently. When you open a tool, your browser downloads the PDF software itself (two well-known open-source libraries, pdf.js by Mozilla and pdf-lib). Your file is then opened and changed by that software inside your own browser. The file never travels over the internet, so there is nothing for anyone to see, keep or leak.

Password needed