# ImageKit vs Thumbor

**Leader by vioscaleAI score:** Thumbor

| Attribute | ImageKit | Thumbor |
|---|---|---|
| **vioscaleAI score** | 46 (24% (low)) | 55.6 (49% (low)) |
| activity.commits_last_30d | - | 32 |
| adoption.dependent_repos | - | 106 |
| adoption.github_stars | - | 10,517 |
| content.faq | - | `[{"answer":"Thumbor is an open-source image processing service that automatically optimizes images on-demand using smart face detection. It supports dynamic cropping, resizing, format conversion (including WebP), and image filters to improve website performance and reduce file sizes. It is indexed under Image Optimization.","source":"https://www.thumbor.org","question":"What is Thumbor?","confidence":0.6},{"answer":"Thumbor is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.","source":"https://www.thumbor.org","question":"Is Thumbor free to use?","confidence":0.6},{"answer":"Yes. Thumbor is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/thumbor/thumbor","question":"Is Thumbor open source?","confidence":0.95}]` |
| description.long | - | Thumbor is an open-source image processing service that automatically optimizes images on-demand using smart face detection. It supports dynamic cropping, resizing, format conversion (including WebP), and image filters to improve website performance and reduce file sizes. |
| features.capabilities | - | `{"ai_smart_crop_face_detection_centering":true,"on_the_fly_url_parameter_resizing_and_cropping":true,"lossless_and_perceptual_lossy_compression_algorithms":true}` |
| language.primary | - | Python |
| license.spdx | - | MIT |
| pricing | - | `{"type":"open_source","freeTier":true,"sourceUrl":"https://www.thumbor.org","retrievedAt":"2026-09-01T16:05:49.052Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | open_source |
| pricing.price_level | - | free |
| release.cadence_days | - | 22 |
| release.history | - | `[{"url":"https://github.com/thumbor/thumbor/releases/tag/7.8.0","date":"2026-05-30T23:26:33Z","type":"stable","version":"7.8.0"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.7.7","date":"2025-05-15T16:32:04Z","type":"stable","version":"7.7.7"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.7.6","date":"2025-05-09T19:10:00Z","type":"stable","version":"7.7.6"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.7.5","date":"2025-04-05T01:12:04Z","type":"stable","version":"7.7.5"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.7.4","date":"2024-03-04T20:46:54Z","type":"stable","version":"7.7.4"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.7.3","date":"2024-01-09T13:27:32Z","type":"stable","version":"7.7.3"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.7.2","date":"2023-12-05T17:14:35Z","type":"stable","version":"7.7.2"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.7.1","date":"2023-11-08T20:51:20Z","type":"stable","version":"7.7.1"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.7.0","date":"2023-10-31T13:14:10Z","type":"stable","version":"7.7.0"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.6.0","date":"2023-10-09T12:42:45Z","type":"stable","version":"7.6.0"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.5.2","date":"2023-07-07T06:29:27Z","type":"stable","version":"7.5.2"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.5.1","date":"2023-06-20T20:43:21Z","type":"stable","version":"7.5.1"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.5.0","date":"2023-05-29T04:22:19Z","type":"stable","version":"7.5.0"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.4.7","date":"2023-01-31T12:52:29Z","type":"stable","version":"7.4.7"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.4.6","date":"2023-01-27T00:44:43Z","type":"stable","version":"7.4.6"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.4.5","date":"2023-01-27T00:43:25Z","type":"stable","version":"7.4.5"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.4.4","date":"2023-01-06T17:02:57Z","type":"stable","version":"7.4.4"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.4.3","date":"2023-01-04T20:30:03Z","type":"stable","version":"7.4.3"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.4.2","date":"2022-12-21T20:55:57Z","type":"stable","version":"7.4.2"},{"url":"https://github.com/thumbor/thumbor/releases/tag/7.4.1","date":"2022-12-22T10:26:03Z","type":"stable","version":"7.4.1"}]` |
| security.iso27001 | yes | - |
| security.scorecard | - | 6.9 |
| security.soc2 | yes | - |
| security.vulnerabilities | - | `{"count":6,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=thumbor&per_page=100","last_12m":6,"max_severity":"HIGH"}` |

## Capabilities (Image Optimization)

| Capability | ImageKit | Thumbor |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Architecture model | - | - |
| On the fly URL parameter resizing and cropping | - | ✓ |
| Auto webp avif format negotiation via browser headers | - | - |
| AI smart crop face detection centering | - | ✓ |
| Lossless and perceptual lossy compression algorithms | - | ✓ |
| Global CDN edge delivery network included | - | - |
| Watermarking and text overlay via URL API | - | - |
| Video transcoding and gif to mp4 conversion | - | - |
| Svg sanitization and optimization | - | - |
| Dashboard analytics for bandwidth cache hit ratio | - | - |
| SOC2 type ii | - | - |
| ISO 27001 | - | - |
| Pricing model | - | - |

*Source: vioscaleAI. Generated 2026-09-11T23:37:33.698Z. "-" = undocumented, not absent.*