56 private PDF tools that run entirely in your browser
Merge, convert, compress, sign and redact, and even summarize and ask questions with on-device AI. Your files never upload, and the live counter above proves it: it stays at 0 B while you work.
New: Summarize a PDF or ask your PDF questions with AI that runs on your device, not a server.
Do not trust us: verify us, watch the network tab while you work.
56 tools, one private suite
Merge, convert, compress, sign, redact, OCR, and even summarize and question PDFs, all in one place.
Proven zero-upload
A live meter counts every outbound byte and stays at 0 B. Proof, not a promise.
Free and offline
No signup, no watermark. Installs as an app and keeps working with no internet.
Start here
The four things people come here to do most.
All 56 PDF tools, one private suite: merge, split, convert, compress and more
All free, all private. Each tool runs locally in your browser, and the live meter proves nothing is ever uploaded.
Organize9 tools
Convert18 tools
Edit & sign10 tools
Optimize & secure9 tools
Image tools5 tools
Popular uses
Common tasks people do privately, right in the browser.
Compare with other PDF tools
Most online PDF editors upload your file to their servers to process it. PDFMergely runs the same everyday tools on your device instead. See how it compares:
How is this possible?
Traditional PDF tools upload your file to a server, process it there, and send it back. Your document passes through someone else's computer. PDFMergely flips the model: we ship the PDF engine to your browser, so every operation runs on your device. There is literally no upload endpoint. It's not a promise, it's the architecture.
Frequently asked questions
Is PDFMergely free to use?+
Yes. Every tool is completely free, with no account, sign-up or watermark. The whole toolkit runs in your browser.
Does PDFMergely upload my files to a server?+
No. There is no upload endpoint. Your PDF is processed entirely in your browser using WebAssembly and Web Workers, so the file never leaves your device.
Is it safe to use PDFMergely for sensitive documents?+
Yes. Because files are processed locally and never uploaded, PDFMergely suits sensitive documents such as invoices, bank statements, contracts and IDs. A live in-page meter shows that 0 bytes are uploaded.
How do I merge PDFs without uploading them?+
Open the Merge PDF tool, drop in your files, drag to reorder them, then download the combined PDF. Every step runs on your device, with no upload.
What can PDFMergely do?+
It has 56 tools covering the everyday PDF workflow: merge, split, compress, rotate, reorder, crop and resize; edit, sign, redact, fill forms and compare; protect, unlock and strip metadata; OCR and scan; extract text; and convert to and from JPG, PNG, WebP, Word, Markdown and EPUB. It can also summarize a PDF and answer questions about it with on-device AI, generate strong passwords, and share a file straight to your device apps. Every tool runs in your browser, and the full catalogue is on the homepage.
Does PDFMergely work offline?+
Yes. After your first visit, the app resources are cached automatically, so every tool keeps working with no internet connection, even tools you have not opened before. You can also optionally install PDFMergely as an app. The one exception is the tools built on a large engine (OCR and Scan): those download that engine the first time you run them online, and then work offline too.
Is PDFMergely a good alternative to Smallpdf or iLovePDF?+
Yes. It offers the same common PDF tools but processes files on your device instead of uploading them, making it a privacy-first alternative to Smallpdf and iLovePDF.
Do I need to install any software?+
No. PDFMergely runs in any modern web browser on desktop or mobile. You can optionally install it as an app for offline use.