| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | Yes | — |
| Self-hosted | — | Yes |
| Plans published | 3 | 1 |
| Spec score · OCR tools | 8.3 (#5) | 8.1 (#8) |
| Spec score · OCR software | 8.2 (#17) | 8.0 (#22) |
| Free plan | Yes | Yes |
| Supported inputs | both | both |
| Primary platform | web | both |
| Purpose | The service converts scanned documents and images into editable text. | OCR4all provides a workflow for recognizing historical printed and handwritten material, with user interaction at workflow stages to improve results. |
| Support | The contact form offers Suggestions and Product Support as subject options. | The team page identifies a user support contact, Florian Langhanki, with a University of Würzburg email address. |