Frequently Asked Questions

ConverterKit is a free, privacy-first file conversion platform. All processing happens directly in your browser using WebAssembly — your files are never uploaded to any server. We offer 13+ tools including Word to PDF, Excel to PDF, Image to PDF, PDF merging, splitting, and more.

Yes, 100% free with no hidden fees, no premium tiers, and no usage limits. We believe essential file conversion tools should be accessible to everyone. No credit card required, no trial periods — free forever.

No. ConverterKit requires zero sign-up. Just visit the site, pick a tool, drop your file, and convert. No accounts, no emails, no friction. Start converting in seconds.

Absolutely. ConverterKit is free for personal and commercial use. Convert files for your business, team, or clients without any restrictions or attribution requirements.

Absolutely. All file processing happens directly in your browser using WebAssembly. Your files are never uploaded to our servers. We operate on a zero-knowledge architecture — we literally cannot see your data.

No. Your files exist only in your browser's memory during conversion. Once you close the tab or navigate away, all data is gone. We have zero server-side storage for user files — by design.

We use only essential cookies for basic site functionality. We do not use any third-party tracking, analytics trackers, or advertising cookies. Your privacy is our top priority — no exceptions.

Yes. Since we don't collect, process, or store personal data, we're compliant by design. We don't process data on servers, so there's nothing to regulate. You can read more on our GDPR page.

ConverterKit supports Word (DOCX), Excel (XLSX), PowerPoint (PPTX), Images (JPG, PNG, WebP), Text (TXT), EPUB, and Website (URL) conversions to and from PDF. We also offer PDF merge, split, and page removal tools. More formats are being added regularly.

Yes! Many of our tools support batch processing. For example, you can merge multiple PDFs, convert multiple images to PDF, or process several documents in one go.

Since processing happens in your browser, limits depend on your device's available memory. Most modern devices handle files up to 100MB+ without issues. For very large files, we recommend using a desktop browser for best performance.

Unlimited. There are no daily limits, no conversion caps, and no throttling. Convert as many files as you need, whenever you need. Since everything runs locally, there's no server load to worry about.

We use WebAssembly (WASM) to run conversion engines directly in your browser at near-native speed. This means your files never leave your device — everything is processed locally using your device's CPU and memory.

Yes! ConverterKit is fully responsive and works on all modern mobile browsers including Safari, Chrome, and Firefox on both iOS and Android. The experience is optimized for touch interactions.

ConverterKit works on all modern browsers that support WebAssembly: Chrome 57+, Firefox 52+, Safari 11+, Edge 16+, and Opera 44+. This covers 97%+ of all internet users worldwide.

Currently, you need an internet connection to load the page and WebAssembly modules. However, once loaded, the actual conversion processing happens entirely offline in your browser. We're exploring full offline support via Service Workers.

You can reach us anytime at support@theconverterkit.com. We typically respond within 24 hours. For feature requests, use our contact page.

We appreciate bug reports! Please email us at support@theconverterkit.com with a description of the issue, the browser you're using, and the file type you were converting. Screenshots help too. We take every report seriously.

Absolutely! We're community-driven and love hearing what tools you need. Send us your suggestions via the contact page or email. The most requested features get prioritized in our roadmap.