# Black vs StyleLint

| Attribute | Black | StyleLint |
|---|---|---|
| **vioscaleAI score** | 73.9 (77% (high)) | 77.2 (71% (medium)) |
| activity.commits_last_30d | 75 | 36 |
| adoption.dependent_repos | 105,588 | 200,392 |
| adoption.github_stars | 41,918 | 11,531 |
| adoption.package_downloads_weekly | 27,633,532 | 10,966,597 |
| content.faq | `[{"answer":"An opinionated Python code formatter that automatically reformats code according to a standardized style. It produces minimal diffs for cleaner code review and reduces developer cognitive load by removing formatting decisions, allowing focus on code logic. It is indexed under Code Quality Tools.","source":"https://black.readthedocs.io/en/stable/","question":"What is Black?","confidence":0.6},{"answer":"Black 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://black.readthedocs.io/en/stable/","question":"Is Black free to use?","confidence":0.6},{"answer":"Black supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://black.readthedocs.io/en/stable/","question":"What platforms does Black support?","confidence":0.6},{"answer":"Yes. Black can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://black.readthedocs.io/en/stable/","question":"Can Black be self-hosted?","confidence":0.6},{"answer":"We have confirmed 8 integrations for Black, including Neovim, conform.nvim, ALE, SublimeText, Pre-commit, Jupyter Notebooks, blacken-docs and blackdoc. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://black.readthedocs.io/en/stable/","question":"What does Black integrate with?","confidence":0.6},{"answer":"Yes. Black 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/psf/black","question":"Is Black open source?","confidence":0.95}]` | `[{"answer":"Stylelint is an open-source CSS linter with over 100 built-in rules that helps developers catch errors, enforce conventions, and automatically fix issues. It supports plugins for custom rules and can parse CSS-like languages such as SCSS and Sass. It is indexed under Code Quality Tools.","source":"https://stylelint.io/","question":"What is StyleLint?","confidence":0.6},{"answer":"StyleLint 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://stylelint.io/","question":"Is StyleLint free to use?","confidence":0.6},{"answer":"StyleLint supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://stylelint.io/","question":"What platforms does StyleLint support?","confidence":0.6},{"answer":"Yes. StyleLint can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://stylelint.io/","question":"Can StyleLint be self-hosted?","confidence":0.6},{"answer":"Yes. StyleLint 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/stylelint/stylelint","question":"Is StyleLint open source?","confidence":0.99}]` |
| deployment.options | `{"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | A Python code formatter that automatically reformats entire files to enforce consistent styling. It produces minimal diffs to accelerate code review and ensures uniform appearance across projects. | A CSS linter that validates stylesheets against built-in and custom rules to ensure error-free and consistent code, with automatic fixing capabilities and support for CSS-like languages. |
| features.capabilities | `{"autofix":true,"metrics":false,"function":"formatter","ci_gating":true,"deployment":"both","incremental":false,"open_source":"oss","config_model":"zero_config","custom_rules":false,"impl_language":"Python","pricing_model":"free","language_scope":"single_language","editor_integration":true}` | `{"autofix":true,"metrics":true,"function":"linter_formatter","ci_gating":true,"deployment":"cli_local","incremental":true,"open_source":"oss","config_model":"config_file","custom_rules":true,"impl_language":"JavaScript","pricing_model":"free","language_scope":"single_language","editor_integration":true}` |
| integrations.count | 5 | - |
| integrations.list | `[{"name":"Neovim"},{"name":"conform.nvim"},{"name":"ALE"},{"name":"SublimeText"},{"name":"Pre-commit"},{"name":"Jupyter Notebooks"},{"name":"blacken-docs"},{"name":"blackdoc"},{"name":"Vim","native":true},{"name":"Visual Studio Code","native":true,"category":"editor","direction":"bidirectional"},{"name":"GitHub Actions","native":true,"category":"ci","direction":"inbound"}]` | - |
| language.primary | Python | JavaScript |
| license.spdx | MIT | MIT |
| platform.support | `{"cli":true,"linux":true,"windows":true}` | `{"cli":true}` |
| pricing | `{"type":"free","summary":"Free and open source","freeTier":true,"sourceUrl":"https://black.readthedocs.io/en/stable/","retrievedAt":"2026-09-14T09:28:09.046Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://stylelint.io/","retrievedAt":"2026-09-10T16:00:24.713Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | free | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | yes |
| release.cadence_days | 31 | 7 |
| release.history | `[{"url":"https://github.com/psf/black/releases/tag/26.10.1","date":"2026-10-10T04:11:33Z","type":"stable","version":"26.10.1"},{"url":"https://github.com/psf/black/releases/tag/26.10.0","date":"2026-10-04T16:50:23Z","type":"stable","version":"26.10.0"},{"url":"https://github.com/psf/black/releases/tag/26.5.1","date":"2026-05-18T16:52:38Z","type":"stable","version":"26.5.1"},{"url":"https://github.com/psf/black/releases/tag/26.5.0","date":"2026-05-16T17:56:23Z","type":"stable","version":"26.5.0"},{"url":"https://github.com/psf/black/releases/tag/26.3.1","date":"2026-03-12T03:35:15Z","type":"stable","version":"26.3.1"},{"url":"https://github.com/psf/black/releases/tag/26.3.0","date":"2026-03-06T17:41:48Z","type":"stable","version":"26.3.0"},{"url":"https://github.com/psf/black/releases/tag/26.1.0","date":"2026-01-18T04:49:25Z","type":"stable","version":"26.1.0"},{"url":"https://github.com/psf/black/releases/tag/26.1a1","date":"2025-12-08T01:46:21Z","type":"prerelease","version":"26.1a1"},{"url":"https://github.com/psf/black/releases/tag/25.12.0","date":"2025-12-08T01:40:32Z","type":"stable","version":"25.12.0"},{"url":"https://github.com/psf/black/releases/tag/25.11.0","date":"2025-11-10T01:53:31Z","type":"stable","version":"25.11.0"},{"url":"https://github.com/psf/black/releases/tag/25.9.0","date":"2025-09-19T00:27:15Z","type":"stable","version":"25.9.0"},{"url":"https://github.com/psf/black/releases/tag/25.1.0","date":"2025-01-29T04:15:11Z","type":"stable","version":"25.1.0"},{"url":"https://github.com/psf/black/releases/tag/24.10.0","date":"2024-10-07T19:20:06Z","type":"stable","version":"24.10.0"},{"url":"https://github.com/psf/black/releases/tag/24.8.0","date":"2024-08-02T17:42:53Z","type":"stable","version":"24.8.0"},{"url":"https://github.com/psf/black/releases/tag/24.4.2","date":"2024-04-26T00:31:27Z","type":"stable","version":"24.4.2"},{"url":"https://github.com/psf/black/releases/tag/24.4.1","date":"2024-04-24T15:17:30Z","type":"stable","version":"24.4.1"},{"url":"https://github.com/psf/black/releases/tag/24.4.0","date":"2024-04-12T20:13:48Z","type":"stable","version":"24.4.0"},{"url":"https://github.com/psf/black/releases/tag/24.3.0","date":"2024-03-15T19:35:14Z","type":"stable","version":"24.3.0"},{"url":"https://github.com/psf/black/releases/tag/24.2.0","date":"2024-02-12T20:20:40Z","type":"stable","version":"24.2.0"},{"url":"https://github.com/psf/black/releases/tag/24.1.1","date":"2024-01-28T05:28:09Z","type":"stable","version":"24.1.1"}]` | `[{"url":"https://github.com/stylelint/stylelint/releases/tag/17.16.0","date":"2026-10-01T10:26:01Z","type":"stable","version":"17.16.0"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.15.0","date":"2026-09-04T14:01:44Z","type":"stable","version":"17.15.0"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.14.1","date":"2026-07-20T01:16:07Z","type":"stable","version":"17.14.1"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.14.0","date":"2026-06-25T15:22:34Z","type":"stable","version":"17.14.0"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.13.0","date":"2026-06-06T15:44:09Z","type":"stable","version":"17.13.0"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.12.0","date":"2026-05-20T10:49:28Z","type":"stable","version":"17.12.0"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.11.1","date":"2026-05-14T09:23:25Z","type":"stable","version":"17.11.1"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.11.0","date":"2026-05-05T11:38:30Z","type":"stable","version":"17.11.0"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.10.0","date":"2026-05-03T10:17:10Z","type":"stable","version":"17.10.0"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.9.1","date":"2026-04-27T13:06:58Z","type":"stable","version":"17.9.1"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.9.0","date":"2026-04-23T06:54:22Z","type":"stable","version":"17.9.0"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.8.0","date":"2026-04-15T11:50:13Z","type":"stable","version":"17.8.0"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.7.0","date":"2026-04-12T13:07:47Z","type":"stable","version":"17.7.0"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.6.0","date":"2026-03-26T09:39:45Z","type":"stable","version":"17.6.0"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.5.0","date":"2026-03-19T16:32:30Z","type":"stable","version":"17.5.0"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.4.0","date":"2026-02-25T13:22:00Z","type":"stable","version":"17.4.0"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.3.0","date":"2026-02-13T11:03:54Z","type":"stable","version":"17.3.0"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.2.0","date":"2026-02-10T09:47:26Z","type":"stable","version":"17.2.0"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.1.1","date":"2026-02-03T15:54:46Z","type":"stable","version":"17.1.1"},{"url":"https://github.com/stylelint/stylelint/releases/tag/17.1.0","date":"2026-01-30T12:37:43Z","type":"stable","version":"17.1.0"}]` |
| security.disclosure_policy | yes | - |
| security.scorecard | 7.5 | 7.4 |
| security.vulnerabilities | `{"count":2,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=black&per_page=100","last_12m":1,"max_severity":"HIGH"}` | `{"count":1,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=stylelint&per_page=100","last_12m":0,"max_severity":"LOW"}` |

## Capabilities (Code Quality Tools)

| Capability | Black | StyleLint |
|---|:--:|:--:|
| **Core** |  |  |
| Function | Formatter | Linter + formatter |
| Language scope | Single-language | Single-language |
| Implementation language | Python | JavaScript |
| **Capability** |  |  |
| Autofix | ✓ | ✓ |
| **Config** |  |  |
| Config model | Zero-config | Config file |
| **Extensibility** |  |  |
| Custom rules | ✗ | ✓ |
| **Deployment** |  |  |
| Deployment | Both | CLI-local |
| **Delivery** |  |  |
| Editor integration | ✓ | ✓ |
| CI / VCS gating | ✓ | ✓ |
| **Insight** |  |  |
| Code metrics | ✗ | ✓ |
| **Performance** |  |  |
| Incremental / monorepo aware | ✗ | ✓ |
| **Licensing** |  |  |
| Open-source | OSS | OSS |
| **Commercial** |  |  |
| Pricing model | Free | Free |

*Source: vioscaleAI. Generated 2026-10-16T17:44:30.431Z. "-" = undocumented, not absent.*