Both tools are called "free" — but they mean very different things. FreeConvert is ad-supported cloud processing. Convertlo is zero-upload, zero-ad, runs entirely in your browser. Here's the full comparison.
| Feature | Convertlo | FreeConvert |
|---|---|---|
| Files uploaded to server | Never — runs in browser | Yes — cloud processing |
| Ads on free tier | No ads | Yes — ads on free plan |
| Account required | Never | Optional |
| Cost | Free, unlimited | Free (limited) / paid plans available |
| File size limit | 50 MB (device RAM) | 1 GB free tier, higher on paid |
| Format count | 70+ (common formats) | 1500+ (very broad) |
| Works offline | Yes — once the page has loaded | No |
| Conversion speed | Device-dependent | Cloud servers — fast for large files |
| Privacy model | Zero-upload | Files sent to cloud, deleted after |
| Batch conversion | Not yet | Yes |
You want no ads and no uploads. Privacy matters — files shouldn't leave your device. You're converting common formats: JPG, PNG, WebP, MP3, MP4, PDF, DOCX, XLSX. You want a clean, fast UI with no distractions.
You need an obscure format not in Convertlo's 70+ list. You have large files over 50 MB and don't mind cloud processing. You need batch conversion and want a single ZIP download.
Yes. FreeConvert processes files on its cloud servers. They state files are deleted after a short period, but your file does leave your device and travel over the internet. Convertlo never uploads anything — all processing happens in your browser.
FreeConvert's free tier is ad-supported and limited to 1 GB per conversion. Paid plans remove ads and increase limits. Convertlo has no limits, no ads, and no paid tier — it's entirely free.
Convertlo is significantly more private. Your files never leave your device — everything is processed by your browser's WebAssembly runtime. FreeConvert sends files to cloud servers for processing.
Yes — FreeConvert supports 1500+ formats including video codecs, e-books, CAD files, and archives. Convertlo covers 70+ formats for everyday use (JPG, PNG, WebP, AVIF, MP3, MP4, PDF, DOCX, XLSX, etc.).
Yes, once the page has loaded — conversion runs on your own machine from that point. It will not open again with the connection off, though: there is no service worker caching the app. Video conversions download FFmpeg.wasm the first time, which happens automatically.
Convert files in your browser. Nothing leaves your device.
Start Converting →