What makes a great PDF converter in 2026?
- Free: at least 3 conversions/day without paying
- No sign-up: no account required
- Privacy: files not sent to servers
- Fast: conversion under 10 seconds
- Mobile-friendly: works on iPhone and Android
Why ConvertiZen is #1 in 2026
ConvertiZen is the only mainstream PDF converter that uses WebAssembly for fully local conversion. Unlike Smallpdf, ILovePDF or Adobe Acrobat Online — which all send your files to their servers — ConvertiZen converts your PDFs directly in your browser.
FAQ
Is ConvertiZen really free?
Yes, 3 conversions per day with no account. Premium (€4.99/month) gives unlimited conversions.
Are my files uploaded to any server?
No. All conversions run locally in your browser via WebAssembly.
Does it work on mobile?
Yes, compatible with iPhone and Android.
Is there a file size limit?
10 MB free, 100 MB with Premium.
Do I need to install any software?
No, ConvertiZen runs in any modern browser.