PDF24 Tools
A large set of free PDF tools, most of which do the work inside your browser rather than uploading the file.
Cost
Completely free
Free, with no task-per-day limit. Funded by ads on the website.
Open source
No
The code is private. You depend on the company that makes it.
Your data
Stays on your computer
Nothing is uploaded. This matters for anything confidential.
Use it for this
Everyday PDF work when the document is not something you want on a stranger's server. Many of its tools state clearly that processing happens on your device. There is also a free Windows desktop version that is fully offline.
Do not use it for this
People who need one predictable workflow — the sheer number of tools is a maze at first.
A moment where you would reach for it
Merging six scanned pages into one PDF on a work laptop, without the scan leaving the machine.
How hard is it to pick up?
Anyone can use this on day one.
Worth knowing before you use it
Several tools run entirely in the browser, and the Windows desktop app works with no internet at all. That is a genuinely better position than upload-only converters — but check the individual tool, because not every one is local.
Other things that do this job
No tool is best at everything. These solve a similar problem, with different trade-offs.
- Stirling PDFOpen sourceFreeA self-hostable toolkit for merging, splitting, converting, compressing and signing PDFs.
- iLovePDFA browser toolkit for merging, splitting, compressing, converting, rotating and unlocking PDFs.
- PDF ArrangerOpen sourceFreeA small tool for reordering, rotating, splitting and merging PDF pages.
About this entry
Checked on 1 Sept 2026. Prices and free limits change without warning, and often quietly. Treat everything above as a starting point and confirm on the official site before you rely on it.
Nothing here is sponsored. A tool appears because it solves a real problem, not because someone paid for it to be listed.