Both convert files — but they do it very differently. CloudConvert is a powerful cloud service. Convertlo runs entirely in your browser. Here's how they compare so you can pick the right tool for your needs.
| Feature | Convertlo | CloudConvert |
|---|---|---|
| Files uploaded to server | Never — runs in browser | Yes — processed in cloud |
| Account required | No | Optional (required for API) |
| Cost | Free, unlimited | Free tier (25 min/day), then paid |
| Format count | 70+ (image, audio, video, doc) | 200+ (incl. CAD, e-book, archive) |
| Works offline | Yes (after first load) | No — requires internet |
| File size limit | 50 MB (device RAM limit) | Depends on plan (1–5 GB on paid) |
| Batch conversion | Not yet | Yes (ZIP download) |
| API access | No | Yes (REST API, paid) |
| Privacy model | Zero-upload — nothing leaves your device | Files deleted after conversion, but do leave device |
| Speed (large files) | Device-dependent | Fast — cloud servers |
| Works on mobile | Yes | Yes |
You care about privacy and don't want files leaving your device. You need a quick, free conversion with no account. You're converting images, common audio/video, or basic documents. You want something that works offline.
You need rare formats (CAD, e-book, archive). You're processing large files (>50 MB). You need batch or API-based conversion for a workflow. You don't mind files being processed on a cloud server.
No. Convertlo runs entirely in your browser using WebAssembly and browser APIs. Your files are never sent to any server. You can verify this by opening DevTools → Network tab and watching zero file uploads happen during conversion.
Yes. CloudConvert is a cloud-based service — your files are sent to their servers for processing. They state files are deleted shortly after conversion, but the file does leave your device.
Yes, Convertlo is free with no conversion limits, no daily caps, and no account needed. CloudConvert offers a free tier of 25 conversion minutes per day, with paid plans for higher usage.
CloudConvert supports 200+ formats including CAD files (DXF, DWG), e-books (EPUB, MOBI), and archives (ZIP, RAR). Convertlo covers 70+ common formats across image, audio, video, and document categories. If you need an unusual format, CloudConvert is the better choice.
Convertlo handles files up to 50 MB, limited by your device's available RAM — since all processing happens locally. CloudConvert can handle larger files on paid plans (up to 1–5 GB depending on tier).
No upload, no account, no cost. Just drop your file and convert.
Start Converting →