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 (after first load) | 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. After your first visit, Convertlo's service worker caches the app. Image, audio, and document conversions work offline. Video conversions need FFmpeg.wasm to be cached, which happens automatically after first use.
Convert files in your browser. Nothing leaves your device.
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