Private PDF tools that run in your browser
Your files never leave your device, so your documents stay private by design. Twenty-three free PDF and Markdown tools that run locally: no account, no upload, no watermarks.
Convert
Convert PDFs to clean Markdown, with automatic OCR for scanned pages.
Convert to an editable .docx, with headings and lists preserved.
Convert a .docx to PDF entirely in your browser.
Pull all text out as plain .txt, with OCR for scanned pages.
Export pages as images, or build a PDF from images.
The reverse direction: turn Markdown into a clean PDF.
Pull table-like text into an editable .xlsx spreadsheet.
Turn a spreadsheet into a clean PDF, sheet by sheet.
Combine photos or scans into one PDF file.
Organize & edit
Combine multiple PDFs into one file, in the order you choose.
Pull out page ranges, or split every page into its own file.
Reorder, rotate, and delete pages in one view.
Fix sideways pages, one at a time or all at once.
Stamp numbers in the corner, format, and start you choose.
Stamp DRAFT or CONFIDENTIAL across every page.
Fill form fields and drop in a signature, drawn or typed.
Trim margins from every page with a live preview.
Mark pages to remove and download a leaner PDF.
Security
Optimize & view
Why client-side
- Nothing is uploaded. There is no backend and no upload endpoint. Every tool runs in this tab only, so we literally cannot see, store, or access the files you open.
- Verified libraries. The open-source libraries each tool relies on are fetched, checked against a pinned cryptographic hash, and only then executed. A tampered download is rejected, not silently run.
- No account, no tracking scripts. No signup, no cookies beyond a local theme preference that never leaves your device. Our host sees standard aggregate traffic stats, like any web host does, but we add no analytics of our own.
- Completely free, no watermarks. There's no premium tier and no backend to enforce one: every tool is fully functional, with no watermark added to your files and no page or usage limits beyond what your own browser can handle.
Frequently asked questions
Is BrowserPDF really free?
Yes. Every tool is fully functional with no account, no premium tier, no watermarks, and no usage limits. There is no backend that could enforce any of those anyway.
Are my files uploaded anywhere?
No. Each tool processes your file inside the browser tab using JavaScript and WebAssembly. There is no upload endpoint at all, which you can verify yourself: open your browser's developer tools and watch the network panel while you work.
Is there a file size limit?
We don't impose one. The practical limit is your device's memory, since all processing happens locally. Very large files simply take longer on slower hardware.
Do scanned PDFs work?
Yes. Tools that read text (PDF to Markdown, PDF to Word, Extract Text, Make Searchable) fall back to OCR that runs on your device, with 14 selectable languages.
Which browsers are supported?
Current versions of Chrome, Edge, Firefox, and Safari, on desktop and mobile. Older browsers without WebAssembly support won't run the OCR-based tools.
How can I trust this?
The code is auditable, the open-source libraries it uses are pinned to exact versions and verified with a cryptographic hash before they run, and the strict Content-Security-Policy prevents anything else from loading. Your files never appear in network traffic because no request carrying them is ever made.