| Feature | ConvertFly | Convertio |
|---|---|---|
| Free tier | 10 conversions / day | 10 conversions / day |
| Pricing (starting from) | $9 / month (Starter) | $9.99 / month (unlimited) |
| Formats supported | 200+ | 300+ |
| File size limit (free) | 100 MB | 100 MB |
| API access | Yes - REST API | Yes - REST API |
| No signup required | Yes | Yes (limited) |
| Privacy / Data location | Own private infra (EU/UK/CA) | Cyprus |
| Auto-delete | 24 hours | 24 hours |
| Open-source engines | Yes | Not disclosed |
Where Convertio shines
- Widest format support. With 300+ supported formats, Convertio covers an impressive range of niche and legacy file types that smaller services may not handle.
- Simple unlimited plan. For $9.99/month you get unlimited conversions with no per-file caps, which is straightforward for heavy users.
- Browser extension. Convertio offers a Chrome extension for quick conversions directly from the browser, which some users find convenient.
Where ConvertFly shines
- Private by design. All files are processed on ConvertFly's own private infrastructure and never touch third-party clouds, offering stronger privacy guarantees than Cyprus-based hosting.
- Open-source transparency. ConvertFly uses open-source conversion engines, so you know exactly how your files are being processed - no black boxes.
- Clean, ad-free experience. ConvertFly has no ads, no pop-ups, and no upsell banners interrupting your workflow.
The bottom line
Convertio is a popular and capable converter with an impressive format catalog and a simple unlimited pricing plan. It is a solid choice if you need to handle a wide variety of obscure file types. ConvertFly is a strong alternative if you prioritize data privacy on private infrastructure, prefer open-source engines you can trust, and want a clean interface without distractions. Both services offer similar free tiers and comparable pricing - the decision comes down to whether format breadth or privacy and transparency matter more to you.