| Price from | $49/mo | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | Yes | — |
| Linux | — | Yes |
| iOS | Yes | — |
| API | Yes | — |
| Self-hosted | — | Yes |
| Plans published | 4 | 1 |
| Spec score · Image Compression Software | 8.9 (#6) | 8.5 (#15) |
| Analytics | Anonymous file-size and timing statistics are sent through TelemetryDeck unless the user disables anonymous analytics in Settings. | The public website uses self-hosted Umami analytics described as cookieless and collecting no personal data; the desktop app and self-hosted copies collect no analytics. |
| Batch processing | Users can add hundreds of files or entire folders for parallel processing with progress tracking. | Yes |
| Free plan | No | Yes |
| Privacy | The maker says selected files are processed locally and are not uploaded, stored or accessed after compression. | Image processing happens locally, and EXIF/GPS metadata is stripped on re-encode while orientation is preserved. |
| Support | The privacy policy lists [email protected] for questions about privacy or data handling. | The maker invites bug reports through the GitHub repository or by email at [email protected]. |
| What it does | Compresto is a native macOS application that batch-compresses videos, images, GIFs and PDFs locally, with claimed reductions of up to 90%. | Scalir compresses, resizes, and converts images in bulk in the browser, processing files on the user's device. |
