61 PDF tools that run in your browser — local by default
Merge, split, compress, sign, convert and edit PDFs right here in your browser. Local mode is the default: no upload, no account, no watermark.
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Local by default No signup No watermark Works offline once loaded
Local by default, on your device
Every one of the 61 tools runs with JavaScript and WebAssembly in your own browser tab. In local mode there is no upload step and no server-side copy. Cloud features — only the ones you choose — are the single labelled exception.
Fast, even for large files
No upload queue means a 200-page document is processed at the speed of your own machine — and it keeps working offline once the page has loaded.
Free with no catch
No account, no trial, no watermark and no daily cap for the 61 local tools. The project is open source under Apache-2.0, so you can read every line of what runs.
Two modes, one site
Local mode — the default
All 61 tools run in your browser with JavaScript and WebAssembly. Your file is opened on your device and not sent anywhere: free, no account and no daily cap. Nothing to install.
Cloud mode — optional, metered
Some features will need more power than a browser tab can give — talking to a PDF, translation, table extraction, OCR, PDF to PowerPoint, and very large files. When you choose one of those, the file (or the part of its text that step needs) is uploaded for that step only. They are labelled and metered, and they only ever run when you pick them.
All 61 PDF tools
Pick a tool, drop in your file, download the result. Each tool below has its own page and runs locally in your browser.
Merge & Split
Combine, cut and reorder documents without uploading them anywhere.
Convert to PDF
Turn images, text and office files into clean PDFs in the browser.
Convert from PDF
Pull pages out of a PDF as images, text or archives.
Edit & Annotate
Mark up, sign, stamp and restyle a PDF before you send it.
Organize
Reorder, duplicate and lay out pages so the document prints the way you want.
Optimize
Shrink, resize and clean up PDFs so they load fast and print right.
Secure
Lock, unlock and scrub documents before they leave your machine.
How MusePDF works
Three steps, no account, nothing installed.
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Choose a tool
Open the page for the job you need — merge, split, compress, convert, sign, protect and 53 more.
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Drop in your file
Your document is read locally in your browser. In local mode nothing is uploaded, so confidential files stay confidential.
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Download the result
Save the finished file straight to your device. No watermark, no signup wall, no waiting in a queue.
Frequently asked questions
Is MusePDF free?
The 61 local tools are free with no signup, no watermark and no daily limit. Optional cloud features cost server time, so they are metered and some will be paid.
Do my files get uploaded?
For the 61 local tools, no — they run in your browser and your file stays on your device. Optional cloud features (AI, very large files) upload the file, or the text they need, for that step only.
Do I need to install anything?
No. MusePDF runs in any modern browser on desktop, tablet or phone, and works offline once loaded.
How many tools does MusePDF include?
MusePDF includes 61 PDF tools covering merging, splitting, converting, editing, organising, optimising and securing documents.
What happens to my file when I use a cloud feature?
It is used only to produce your result for that one step, and cloud steps are always opt-in.