| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | — | Yes |
| Plans published | 1 | 5 |
| Spec score · Image Compression Software | 7.7 (#56) | 8.7 (#10) |
| Compression modes | both | both |
| Free plan | Yes | Yes |
| Purpose | OIMG compresses images to reduce file size with minimal quality loss. | Pixozip provides an HTTP API and web dashboard for optimizing uploaded image files. |
| Support | The maker provides an email address for support and custom license inquiries. | The pricing page lists community support for Free, email support for Starter, priority support for Pro, and dedicated support for Scale. |
| Supported formats | PNG,JPEG,WebP,AVIF,JPEG XL | JPG,JPEG,PNG,WebP,AVIF,JPEG XL,GIF,TIFF,SVG |