The short answer
A PDF24 alternative with no upload that works in any browser is FixMyPDFs: the tools run in the page itself, on Mac, Windows, Linux, iPhone or Android, and your PDF never leaves your device. PDF24’s online tools upload files to its servers; its offline option is a Windows desktop app.
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Upload required
No — there is no upload endpoint
Yes, for the web tools
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Works offline
Yes, once a tool has loaded
Only with their Windows desktop app
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Free use
No daily cap; file size limited only by your device
Limited on the free plan — see their pricing page
PDF24 has been a favorite free PDF toolkit for years, and it’s generous: lots of tools, no account, no watermark. Its online tools upload your file to PDF24’s servers to process it. The fully offline route is PDF24 Creator, a desktop app for Windows.
FixMyPDFs sits between the two: nothing to install like the web version, nothing uploaded like the desktop app — on any operating system with a modern browser.
How is FixMyPDFs different from PDF24?
| FixMyPDFs | PDF24 | |
|---|---|---|
| Where your PDF is processed | In your browser, on your own device | Uploaded to PDF24’s servers (online tools) |
| Upload required | No — there is no upload endpoint | Yes, for the web tools |
| Account needed | Never | Not for everything, but free use is limited |
| Free use | No daily cap; file size limited only by your device | Limited on the free plan — see their pricing page |
| Watermark | None, ever | None on most free output |
| Works offline | Yes, once a tool has loaded | Only with their Windows desktop app |
| Speed limited by | Your device | Your upload speed, then their servers |
| File retention | Nothing leaves the tab, so there is nothing to retain | Held for a period set by PDF24’s policy, then deleted |
Their plans and limits change; check PDF24’s own pricing page for today’s terms.
Where PDF24 is the better choice
- PDF24 Creator: a full Windows desktop app with a virtual PDF printer
- A very broad set of tools built up over many years
- Server-side processing for heavy jobs on low-powered devices
- A long track record and a large user base
Where FixMyPDFs is
- No upload on the web — the file stays in your browser tab
- Works offline on Mac, Linux, ChromeOS and phones, not just Windows
- True redaction, a privacy scanner and metadata removal, built for sensitive files
- Nothing to install and nothing to update
Which FixMyPDFs tool replaces each PDF24 tool?
- Merge PDF Merge PDF
- Split PDF Split PDF
- Compress PDF Compress PDF
- Edit PDF Edit PDF
- Sign PDF Sign PDF
- PDF to Word PDF to Word
- Images to PDF Images to PDF
- PDF to images PDF to JPG
- Protect PDF Password Protect PDF
- Unlock PDF Remove PDF Password
- OCR PDF OCR PDF
- Compare PDF Compare PDFs
- Crop PDF Crop PDF
- Flatten PDF Flatten PDF
- Add page numbers Add Page Numbers
- Pages per sheet Multiple Pages per Sheet
Questions
Does PDF24 upload my files?
Its online tools do: files are processed on PDF24’s servers, in data centers in the EU, and deleted automatically after one hour (sooner if you delete them yourself). The PDF24 Creator desktop app for Windows works offline.
Is PDF24 really free?
Yes — PDF24 says its tools are free for everyone, companies included, without restriction, paid for by advertising on its sites. FixMyPDFs is free too, with no ads in the tools, and the difference that matters is where the work happens: their servers, or your browser.
Is there a browser-based PDF24 alternative that doesn’t upload?
Yes — FixMyPDFs runs entirely in your browser, so it works like a desktop app without installing anything, on any operating system.
What are the best free PDF tools in 2026?
For privacy, tools that process files on your own device: PDF24 Creator on Windows, and browser-based tools like FixMyPDFs everywhere else. For team workflows and e-signature requests, the cloud services lead.
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