Merge PDF files — free, online, without uploading them anywhere
Most "free online PDF merger" sites work by uploading your documents to their server. This one doesn't: the merge happens inside your browser, there's no watermark, and unlimited single files are free.
Drop in two or more PDFs. Pages render as thumbnails.
Drag pages into order, delete what you don't need, or pull out a page range.
Save the merged PDF. No watermark, no email required, no "upgrade to remove watermark" upsell.
Why "upload your PDF" is the wrong default
The documents people actually need to merge — contracts, payslips, scans of IDs, invoices, medical letters — are exactly the documents you shouldn't hand to a stranger's server. It's not that upload-based tools are malicious; it's that the design is needless. Rendering PDF pages for display is something the browser can do locally.
On this page the merge, reorder and split all run in your browser. No account, no network calls after the page loads — load it and disconnect from the internet; it still works. That's the whole pitch, and you can verify it yourself.
Merge, split, reorder — what this page does
Merge: combine any number of PDFs into one, in the order you choose.
Reorder: drag pages or whole documents into place.
Delete: remove pages you don't want before saving.
Extract: pull a page range out as its own file.
What it doesn't do (on purpose)
It works with PDFs only — no images or Word documents in the mix. Staying byte-precise with one format is what keeps the merge reliable. And it doesn't decrypt anything: password-protected files are flagged and skipped, so remove the password in your PDF app first if you need to merge one.
contract.pdf + scan-2.pdf — merged on this device: pages reordered: 3 → 1, page 7 deleted merged.pdf ✓ 14 pages, no watermark ✓ never uploaded — 0 bytes sent
What the tool looks like in action (illustration — demo file, never real data):
Like the tool? Own it.
The free page handles unlimited single files. The €9 PDF Merger / Splitter / Reorder download is the same tool as a single file: no daily limit, runs offline forever on any computer you own. One-time payment — no subscription.
Yes — unlimited single files, no watermark, no signup. The count lives privately in your own browser. Need more? The €9 download removes the daily limit forever.
Do my documents get uploaded?
No. There is no server and no network calls. Load the page, go offline, and merging still works — that's the proof.
Can I merge password-protected PDFs?
No — they're flagged and skipped rather than decrypted. Remove the password in your PDF app first, then merge.
Is there a page or file-size limit?
No artificial limits — long documents render fine. The only cap on the free page is one file at a time.
Untracked builds single-file tools: no installation, no account, no cloud, no subscription — and no tracking on this page. This guide lives on tools.untracked.tools; every claim on it is about tools you can open and verify yourself.
We use one first-party analytics tool (PostHog, hosted in the EU) to understand which pages and tools are useful. It never sees your files, form contents or search terms, and session recording is off. You can change your mind at any time.