Convertio is one of the most popular cloud-based converters. Convertlo takes the opposite approach — everything runs in your browser, no upload, no limit. Here's how they differ on the things that actually matter.
| Feature | Convertlo | Convertio |
|---|---|---|
| Files uploaded to server | Never — runs in browser | Yes — cloud processing |
| Free tier limit | Unlimited | 10 conversions/day |
| Account required | Never | Not required (basic), needed to raise limits |
| Cost | Free, always | Free (10/day) / paid plans |
| File size limit | 50 MB (device RAM) | 100 MB free, higher on paid |
| Format count | 70+ (common formats) | 300+ formats |
| Works offline | Yes (after first load) | No |
| Speed (small files) | Instant — no upload wait | Upload → convert → download |
| Speed (large video) | Slow on weak devices | Faster — cloud hardware |
| Privacy model | Zero-upload | Files sent to cloud, deleted after 24h |
| Mobile support | Yes | Yes |
You convert files frequently and don't want a daily cap. Privacy is important — you can't afford files leaving your device (e.g. sensitive documents, personal photos). You want a fast experience with no upload/download waiting for small files.
You need a format not covered by Convertlo's 70+. You have large video files (>50 MB) and need fast cloud processing. You convert infrequently and the 10/day free limit is sufficient. You need very high output quality for professional video.
Convertio's free plan allows 10 conversions per day with a maximum file size of 100 MB. Convertlo has no daily conversion limit — you can convert as many files as you like. The only limit is 50 MB per file, which is determined by available device RAM since processing happens locally.
Yes. Convertio is a cloud-based service — your files are uploaded to their servers for processing. They state files are deleted after 24 hours, but the file leaves your device. Convertlo never uploads anything — conversion happens entirely in your browser.
For small image and audio files, Convertlo is significantly faster — there's no upload or download step. For large video files or resource-intensive conversions, Convertio's cloud servers can be faster since they use dedicated hardware rather than your device's CPU.
Yes — Convertlo never requires an account and never will. Convertio also doesn't require an account for basic conversions, but you need one to get above the 10/day free limit.
Convertio supports 300+ formats, including many niche ones. Convertlo covers 70+ common everyday formats across image (JPG, PNG, WebP, AVIF, HEIC, GIF, SVG, BMP, PDF), audio (MP3, WAV, FLAC, AAC, OGG, M4A), video (MP4, WebM, AVI, MKV, MOV), and document (DOCX, XLSX, CSV, TXT, HTML) categories.
No daily limit. No upload. No account. Just convert.
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