| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| Plans published | 1 | 1 |
| Spec score · Screenshot Annotation Software | 7.3 (#68) | 8.6 (#6) |
| Export formats | It exports flattened PNG, JPEG, or PDF files and can copy a flattened image to the clipboard. | PDF, PS |
| Free plan | Yes | Yes |
| Purpose | Arrowbox is a free browser-based image markup tool for annotating and redacting screenshots and other images. | Ksnip is a Qt-based cross-platform screenshot tool with annotation features. |
| Redaction | Redaction can pixelate, blur, or cover image areas with solid black. | Yes |
| Support | The maker welcomes enquiries and bug reports at [email protected]. | The project directs users to GitHub issues for bugs and feature requests and offers Discord and IRC for community discussion. |
