Not all image converters are created equal. Some upload your files to sketchy servers. Some plaster watermarks on everything. Some work great but only for one format. We tested the most popular free image converters across privacy, speed, ease of use, and features. Here's what we found.
| Converter | Privacy | Batch | Speed | Best For | Cost |
|---|---|---|---|---|---|
| WebP2PNG | ✅ Browser-local | ✅ 100 files | ⚡ Instant | WebP/PEG/PNG conversion | Free |
| CloudConvert | ⚠️ Server upload | ✅ | Fast | 200+ formats, advanced options | Free tier / Paid |
| Convertio | ⚠️ Server upload | ✅ | Fast | 300+ formats, OCR | Free tier / Paid |
| iLoveIMG | ⚠️ Server upload | ✅ | Fast | Simple tasks, great UI | Free / Premium |
| svgtopng.com | ✅ Browser-local | ❌ Single file | ⚡ Instant | SVG to PNG only | Free |
| ezgif.com | ⚠️ Server upload | Limited | Moderate | GIF editing & animation | Free |
For most people, WebP2PNG hits the sweet spot: fast, private, supports all common formats, and handles batch conversion with ZIP download — completely free.