Caesium Image Compressor vs Optimole
| Caesium Image Compressor | Optimole | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | Free |
| Open source | No | No |
| Platforms | Web, Windows, macOS, Linux | Web |
| Free plan | Yes | Yes |
| Compression modes | both | AI-powered auto scaling and adaptive quality based on device and connection |
| Batch processing | Yes | — |
| Image resizing | Yes | Yes |
| Supported formats | JPG, PNG, WebP, TIFF | WebP, AVIF |
| Metadata controls | Yes | — |
| API access | — | Yes |
Both are listed in Best Image Compression Software. On Everything Xiaomi, Optimole scores higher on our published basis.