| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | — |
| API | — | Yes |
| Plans published | 1 | 5 |
| Spec score · Image Compression Software | 7.4 (#72) | 8.7 (#10) |
| Batch processing | Yes | Yes |
| Compression modes | both | both |
| Formats | Pingo supports PNG, JPEG, WebP, and APNG. | The API accepts JPEG, PNG, WebP, AVIF, GIF, TIFF, JXL, and SVG; GIF and TIFF convert to PNG, while SVG stays SVG. |
| Free plan | Yes | Yes |
| Metadata controls | Yes | Yes |
| Purpose | Pingo is an experimental image optimizer designed to transform image data for the Web. | Pixozip provides an HTTP API and web dashboard for optimizing uploaded image files. |
| Supported formats | PNG,JPEG,WebP,APNG | JPG,JPEG,PNG,WebP,AVIF,JPEG XL,GIF,TIFF,SVG |