Compress PNG vs ImageOptimizer
| Compress PNG | ImageOptimizer | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | $4.99/mo |
| Open source | No | No |
| Platforms | Web | api, Web |
| Free plan | Yes | Yes |
| Compression modes | both | — |
| Batch processing | Yes | Yes |
| Supported formats | PNG | JPEG, PNG, WebP, GIF, AVIF, TIFF |
| API access | — | Yes |
| Image resizing | — | Yes |
| Metadata controls | — | Yes |
Both are listed in Best Image Compression Software. On Specifiction, ImageOptimizer scores higher on our published basis.