File Convert
Convert 50+ formats. Files never leave your device.
zero upload · 50+ formats · open source
What it does
Local-first file conversion. No accounts, no uploads, no nonsense.
100% Local
Conversion happens in your browser. Files never touch our servers — because we don’t have any.
50+ Formats
Documents, images, audio, video. PDF, DOCX, PNG, JPG, MP3, MP4, and dozens more.
Zero Tracking
No analytics. No cookies. No fingerprinting. Nothing to opt out of because there’s nothing on.
WebAssembly Powered
Native-speed conversion in the browser. No backend, no queue, no waiting.
Free. No catch.
No tiers, no trials, no hidden fees. Limits are physics, not paywalls.
Browser-based
Free- Unlimited conversions.
- 50+ formats supported out of the box.
- File size cap is your browser’s memory — most files under 500MB work fine.
- Works offline once loaded.
Questions
The short answers.
Are my files uploaded anywhere? ▼
No. File Convert runs entirely in your browser using WebAssembly. Your files never leave your device.
What file formats are supported? ▼
50+ formats including PDF, DOCX, PNG, JPG, MP3, MP4, and many more.
Is there a file size limit? ▼
Limits depend on your browser and device memory. Most files under 500MB convert without issue.
Does it work offline? ▼
Yes. Once loaded, the core conversion functionality works offline.