Discover why FreeConversion is the best free and private alternative to Sejda for compressing 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.
Yes, our PDF compressor is completely free. No hidden fees, no registration required, and no file size limits.
Currently, you can compress one file at a time. However, the process is very fast and you can compress as many files as you want consecutively.
Low compression (10-30% reduction) preserves maximum quality. Medium (30-50%) offers a good balance. High (50-70%) significantly reduces size with slight image quality loss. Maximum (70-90%) creates the smallest possible file.
Absolutely! FreeConversion is perfect for professional documents. Since all processing happens locally in your browser, your confidential documents remain 100% private.
The free and private alternative to Sejda. No limits, no registration.
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