Merge PDF
Fetching PDF...
Drop PDF files here or click to browse
Select 2 or more PDFs to merge
How it works
1
Select your PDFs
Drop multiple PDF files or click to browse. No file size limit.
2
Reorder & merge
Drag files into the order you need, then click Merge.
3
Download instantly
Your merged PDF downloads directly. Nothing sent to any server.
Why Mutari?
- ✓ Your files never leave your browser. No server processing, ever
- ✓ Works offline once the page loads
- ✓ No account, no signup, completely free
- ✓ Powered by WebAssembly for fast, native-speed processing
Unlike cloud-based tools
Most online PDF tools upload your files to their servers for processing. Mutari is different: everything runs in your browser using WebAssembly. No file ever leaves your device, which means no privacy risk, no upload wait time, and no file size restrictions imposed by server limits.
Frequently asked questions
Is there a file size limit?
No. Since everything runs in your browser, the only limit is your device's available memory. Most PDFs merge instantly.
Are my PDFs uploaded to a server?
Never. Your files are processed entirely in your browser using WebAssembly. Nothing is sent anywhere.
Can I reorder pages before merging?
Yes. After adding your PDFs, you can drag pages into any order before merging them into a single file.