Discover why FreeConversion is the best free and private alternative to PDFCandy for merging your PDFs.
Select multiple files to join them into one.
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🔒 100% Secure • Local Processing
Last updated : March 26, 2026
Standard interface
Basic editing tools
Cloud connectors (Dropbox/Google)
Strict file size limits on free version
Privacy risk: files are hosted on their cloud
Intrusive ads or aggressive paywalls
Zero Cloud: 100% local merging in browser
Totally free with no daily limits
Instant speed powered by WebAssembly
PDFCandy (https://pdfcandy.com) is a popular tool, but it has significant limitations. The main difference with FreeConversion is privacy: unlike PDFCandy 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 PDFCandy. No limits, no registration.
Compress my PDFs for free →