# OpenCV vs Tesseract OCR

| Attribute | OpenCV | Tesseract OCR |
|---|---|---|
| **Vioscale score** | 67.7 (24% (low)) | 44.8 (21% (low)) |
| activity.commits_last_30d | 100 | 54 |
| adoption.dependent_repos | 543 | 0 |
| adoption.github_stars | 90,611 | 76,197 |
| deployment.options | - | `{"self_hosted":true}` |
| description.long | A free, community-maintained toolkit providing algorithms, data structures, and functions for developing computer vision systems, including image analysis, object detection, and machine learning tasks. | A free, open-source optical character recognition tool that converts scanned images and documents into editable text. Tesseract uses adaptive character classification and neural network-based line recognition to support multiple languages and scripts. |
| language.primary | C++ | C++ |
| license.spdx | Apache-2.0 | Apache-2.0 |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://opencv.org/","retrievedAt":"2026-08-18T12:53:43.529Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://tesseract-ocr.github.io/","retrievedAt":"2026-08-20T16:34:23.403Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | yes |
| release.cadence_days | 96 | 100 |
| release.history | `[{"url":"https://github.com/opencv/opencv/releases/tag/4.14.0","date":"2026-07-19T11:45:21Z","type":"stable","version":"4.14.0"},{"url":"https://github.com/opencv/opencv/releases/tag/5.0.0","date":"2026-06-06T10:52:34Z","type":"stable","version":"5.0.0"},{"url":"https://github.com/opencv/opencv/releases/tag/4.13.0","date":"2025-12-31T09:44:36Z","type":"stable","version":"4.13.0"},{"url":"https://github.com/opencv/opencv/releases/tag/4.12.0","date":"2025-07-02T12:48:11Z","type":"stable","version":"4.12.0"},{"url":"https://github.com/opencv/opencv/releases/tag/4.11.0","date":"2025-01-09T10:25:23Z","type":"stable","version":"4.11.0"},{"url":"https://github.com/opencv/opencv/releases/tag/5.0.0-alpha","date":"2024-12-05T15:54:34Z","type":"prerelease","version":"5.0.0-alpha"},{"url":"https://github.com/opencv/opencv/releases/tag/4.10.0","date":"2024-06-03T08:08:09Z","type":"stable","version":"4.10.0"},{"url":"https://github.com/opencv/opencv/releases/tag/4.9.0","date":"2023-12-28T15:57:30Z","type":"stable","version":"4.9.0"},{"url":"https://github.com/opencv/opencv/releases/tag/4.8.1","date":"2023-09-27T12:17:26Z","type":"stable","version":"4.8.1"},{"url":"https://github.com/opencv/opencv/releases/tag/4.8.0","date":"2023-06-28T17:13:16Z","type":"stable","version":"4.8.0"},{"url":"https://github.com/opencv/opencv/releases/tag/4.7.0","date":"2022-12-28T15:40:40Z","type":"stable","version":"4.7.0"},{"url":"https://github.com/opencv/opencv/releases/tag/4.6.0","date":"2022-06-07T09:42:37Z","type":"stable","version":"4.6.0"},{"url":"https://github.com/opencv/opencv/releases/tag/4.5.5","date":"2021-12-25T11:50:04Z","type":"stable","version":"4.5.5"},{"url":"https://github.com/opencv/opencv/releases/tag/4.5.4","date":"2021-10-10T00:52:59Z","type":"stable","version":"4.5.4"},{"url":"https://github.com/opencv/opencv/releases/tag/3.4.16","date":"2021-10-10T00:45:11Z","type":"stable","version":"3.4.16"},{"url":"https://github.com/opencv/opencv/releases/tag/4.5.3","date":"2021-07-05T23:40:18Z","type":"stable","version":"4.5.3"},{"url":"https://github.com/opencv/opencv/releases/tag/3.4.15","date":"2021-07-05T23:39:49Z","type":"stable","version":"3.4.15"},{"url":"https://github.com/opencv/opencv/releases/tag/4.5.2","date":"2021-04-02T17:45:06Z","type":"stable","version":"4.5.2"},{"url":"https://github.com/opencv/opencv/releases/tag/3.4.14","date":"2021-04-02T17:40:27Z","type":"stable","version":"3.4.14"},{"url":"https://github.com/opencv/opencv/releases/tag/4.5.1","date":"2020-12-22T11:58:44Z","type":"stable","version":"4.5.1"}]` | `[{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.3","date":"2026-07-24T18:33:22Z","type":"stable","version":"5.5.3"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.2","date":"2025-12-26T17:32:31Z","type":"stable","version":"5.5.2"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.1","date":"2025-05-25T09:53:48Z","type":"stable","version":"5.5.1"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.0","date":"2024-11-10T19:29:48Z","type":"stable","version":"5.5.0"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.4.1","date":"2024-06-11T18:25:20Z","type":"stable","version":"5.4.1"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.4.0","date":"2024-06-06T13:35:20Z","type":"stable","version":"5.4.0"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.4.0-rc2","date":"2024-05-19T10:02:04Z","type":"prerelease","version":"5.4.0-rc2"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.4.0-rc1","date":"2024-05-12T13:46:44Z","type":"prerelease","version":"5.4.0-rc1"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.3.4","date":"2024-01-18T09:12:03Z","type":"stable","version":"5.3.4"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.3.3","date":"2023-10-05T19:05:14Z","type":"stable","version":"5.3.3"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.3.2","date":"2023-07-11T11:58:19Z","type":"stable","version":"5.3.2"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.3.1","date":"2023-04-01T19:55:17Z","type":"stable","version":"5.3.1"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.3.0","date":"2022-12-22T14:16:22Z","type":"stable","version":"5.3.0"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.3.0-rc1","date":"2022-12-13T21:42:21Z","type":"prerelease","version":"5.3.0-rc1"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.2.0","date":"2022-07-06T20:22:26Z","type":"stable","version":"5.2.0"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.1.0","date":"2022-03-01T16:33:53Z","type":"stable","version":"5.1.0"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.0.1","date":"2022-01-07T12:48:14Z","type":"stable","version":"5.0.1"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.0.0","date":"2021-11-30T17:53:43Z","type":"stable","version":"5.0.0"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/5.0.0-rc3","date":"2021-11-22T21:09:11Z","type":"stable","version":"5.0.0-rc3"},{"url":"https://github.com/tesseract-ocr/tesseract/releases/tag/4.1.3","date":"2021-11-15T17:36:40Z","type":"stable","version":"4.1.3"}]` |
| security.scorecard | 5.7 | 6.1 |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=conda&package_name=opencv&per_page=100","last_12m":0,"max_severity":null}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=alpine&package_name=tesseract-ocr-data-isl&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Computer Vision Apis)

| Capability | OpenCV | Tesseract OCR |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Custom model training | - | - |
| Face recognition | - | - |
| OCR text extraction | - | - |
| Content moderation | - | - |
| Video support | - | - |
| Edge on device support | - | - |
| Open source | - | - |
| Commercial license required for saas | - | - |
| SOC2 | - | - |

*Source: Vioscale. Generated 2026-09-01T15:09:06.772Z. "-" = undocumented, not absent.*