> For the complete documentation index, see [llms.txt](https://docs.vntranslator.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vntranslator.com/user-guide/ocr/ocr-engines.md).

# OCR Engines

| OCR Engine                                                                                                   | Best For                                           | Notes                                                                                               |
| ------------------------------------------------------------------------------------------------------------ | -------------------------------------------------- | --------------------------------------------------------------------------------------------------- |
| [**Google Cloud Vision**](/user-guide/ocr/ocr-engines/google-cloud-vision.md)                                | <p>Complex background,<br>rotated/colored text</p> | <ul><li>⭐⭐⭐⭐⭐</li><li>🌐 Online</li><li>Cloud-based AI</li><li>Paid (Free tier available)</li></ul> |
| [**Azure Cloud Vision**](/user-guide/ocr/ocr-engines/azure-cloud-vision.md)                                  | <p>Complex background,<br>rotated/colored text</p> | <ul><li>⭐⭐⭐⭐</li><li>🌐 Online</li><li>Cloud-based AI</li><li>Paid (Free tier available)</li></ul>  |
| [Nanonets OCR small ](/user-guide/ocr/ocr-engines/nanonets-ocr-small.md)                                     | Complex background, rotated/colored text           | <ul><li>⭐⭐⭐🌠</li><li>Offline - Custom</li><li>AI-based (LLM)</li></ul>                             |
| [Fast OCR](/user-guide/ocr/ocr-engines/fast-ocr.md)                                                          | Moderate background noise, multi-color text        | <ul><li>⭐⭐⭐</li><li>Offline</li><li>Modern OCR Engine</li></ul>                                     |
| [ScreenAI OCR](/user-guide/ocr/ocr-engines/screenai-ocr.md)                                                  | Moderate background noise, multi-color text        | <p></p><ul><li>⭐⭐⭐</li><li>Offline</li><li>Modern OCR Engine</li></ul>                              |
| Qwen 2.5 VL 7B                                                                                               | Complex background, rotated/colored text           | <ul><li>⭐⭐⭐</li><li>Offline - Custom</li><li>AI-based (LLM)</li></ul>                               |
| [Gemma 3 Vision](/user-guide/ocr/ocr-engines/gemma-3-4b-vision.md)                                           | Complex background, rotated/colored text           | <ul><li>⭐⭐⭐</li><li>Offline - Custom</li><li>AI-based (LLM)</li></ul>                               |
| EasyOCR                                                                                                      | Moderate background noise, multi-color text        | <ul><li>⭐⭐</li><li>Offline - Custom</li><li>Modern ML-based</li></ul>                               |
| [**Tesseract OCR**](/user-guide/ocr/ocr-engines/tesseract-ocr.md)                                            | Basic black text on white background               | <ul><li>⭐</li><li>Offline</li><li>Traditional OCR engine</li></ul>                                  |
| [**Windows OCR**](/user-guide/ocr/ocr-engines/windows-ocr.md)                                                | Basic black text on white background               | <ul><li>⭐</li><li>Offline</li><li>Traditional OCR engine</li></ul>                                  |
| ~~**Google Lens**~~                                                                                          | <p>Complex background,<br>rotated/colored text</p> | <ul><li>⭐⭐⭐⭐</li><li>🌐 Online</li><li>Cloud-based AI</li><li>Unstable</li></ul>                    |
| <p><a href="/pages/IxLIxTyeCEhhwEdd3AZf"><strong>Custom -</strong> <br><strong>Command Line</strong></a></p> | Custom workflows and integration                   | <ul><li>Requires setup knowledge</li><li>Highly flexible for developers</li></ul>                   |
| <p><a href="/pages/U8HsrSSYHOwJhkqMSNlA"><strong>Custom -</strong> <br><strong>HTTP POST</strong></a></p>    | Custom workflows and integration                   | <p></p><ul><li>Requires setup knowledge</li><li>Highly flexible for developers</li></ul>            |