A free, no-upload and 100% private alternative to sejda to shrink your PDFs.
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Last updated : February 13, 2026
Simple interface
Many PDF tools
Desktop version available
50 MB file limit
200 page limit
3 free tasks per day
Mandatory upload to their servers
No size limit
100% local processing (WebAssembly)
No registration required
Unlimited compressions
Your files never leave your device
Sejda (https://www.sejda.com) is a popular tool, but it has significant limitations. The main difference with FreeConversion is privacy: unlike Sejda which sends your files to remote servers, FreeConversion processes everything locally in your browser using WebAssembly technology.
This means your sensitive documents (contracts, resumes, bank statements) never leave your computer. Additionally, FreeConversion is 100% free with no file limits, no registration, and no ads.
Absolutely! FreeConversion is perfect for professional documents. Since all processing happens locally in your browser, your confidential documents remain 100% private.
FreeConversion handles large files directly in your browser. The limit depends mainly on your device's memory, but files up to 100MB are processed without issues.
The free and private alternative to Sejda. No limits, no registration.
Compress my PDFs for free →