RightPDFKit vs iLovePDF vs Smallpdf — Which is Best in 2026?

There are dozens of free PDF tools online. We compared the three most popular options honestly, across privacy, speed, features and pricing.

Feature comparison

Privacy: the most important difference

iLovePDF and Smallpdf both upload your files to their servers. They delete files after a few hours, but your documents are transmitted over the internet and processed on external infrastructure. For sensitive documents — payslips, contracts, medical records, passport scans — this is a real risk.

RightPDFKit processes everything in your browser using WebAssembly. Your files never leave your device. This is a fundamental architectural difference, not just a privacy policy claim.

Speed

Because files don't need to upload and download, RightPDFKit is typically faster for operations like merge, split and compress — especially on larger files or slower internet connections. There's no waiting for a server to process and return your file.

iLovePDF — pros and cons

• ✅ Good server-side PDF conversion (Word, Excel, PowerPoint)
• ✅ Long-established, reliable service
• ❌ Uploads all files to servers
• ❌ Heavy advertising on free plan
• ❌ Most advanced features behind paywall

Smallpdf — pros and cons

• ✅ Polished interface, good UX
• ✅ Desktop app available
• ❌ Very restrictive free plan (2 tasks/day)
• ❌ Uploads all files to servers
• ❌ Most expensive of the three

RightPDFKit — pros and cons

• ✅ 45 free tools — most of any local PDF tool
• ✅ Zero uploads — 100% browser-based processing
• ✅ Works offline after first load
• ✅ No account, no ads, no data collection
• ✅ Cheapest Pro plan at £4.99/month
• ⚠ Word-to-PDF conversion is limited (browser WebAssembly constraint)

Verdict

If privacy matters to you, RightPDFKit is the clear winner. Your files never leave your device — full stop.

If you regularly need to convert Word/Excel/PowerPoint documents to PDF with perfect fidelity, iLovePDF's server-side processing handles edge cases better.

For the vast majority of everyday PDF tasks — merge, compress, sign, OCR, protect, split, rotate, watermark — RightPDFKit does it all, faster, more privately, and for less money.