Free Online PDF Merge & Split
Free online tool to merge multiple PDF files into one or split a single PDF into multiple documents. 100% private, no uploads.
Initializing Module
Optimizing assets and preparing high-fidelity workspace...
How to use it
Choose Your Mode
Select 'Merge' to combine multiple PDFs or 'Split' to extract pages from one PDF.
Upload Files
Drag and drop your PDF files into the secure workspace. You can reorder files for merging by dragging them.
Configure & Process
For splitting, select the page ranges you need. For merging, simply click the Merge button.
Download
Save your processed PDF instantly to your device. No waiting for server processing.
FAQ
?Is it safe to upload my PDFs here?
We don't upload your files! Our tool uses 'pdf-lib' to process everything locally in your browser. Your data never leaves your computer.
?Is there a limit on file size?
The only limit is your browser's memory. Most standard PDFs (up to several hundred MB) will process perfectly on modern devices.
?Can I reorder pages?
In Merge mode, you can reorder the files themselves. In Split mode, you can select specific pages to extract into a new document.
Need a custom tool?
We're constantly adding new tools. Suggest one or report a bug.
Related Tools You Might Need
Free Online PDF to Image Converter
Free online tool to convert PDF pages into high-quality PNG or JPEG images. 100% client-side and secure.
Free Online Percentage Calculator
Free online calculate percentages, find percentage changes, and solve complex percentage problems instantly.
Free Online HTML CSS JS Minifier
Free online compress and minify HTML, CSS, and JavaScript code to reduce file sizes and improve website load times.
Your data never leaves your browser
Manage your PDF documents with ease using our 100% client-side PDF utility. Merge dozens of PDF files into a single document in seconds, or split a large PDF into individual pages or custom ranges. Everything happens directly in your browser using high-performance WASM (WebAssembly) technology, meaning your sensitive documents never leave your computer. No file limits, no watermarks, and completely free.