# Biome vs Ruff

**Leader by Vioscale score:** Ruff

| Attribute | Biome | Ruff |
|---|---|---|
| **Vioscale score** | 67.5 (77% (high)) | 74 (76% (high)) |
| activity.commits_last_30d | 100 | 100 |
| adoption.dependent_repos | 587 | 5,870 |
| adoption.github_stars | 25,652 | 49,341 |
| adoption.package_downloads_weekly | 13,959,709 | 77,677,334 |
| deployment.options | `{"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | A fast command-line tool that formats and lints JavaScript, TypeScript, and web-related file types, combining formatter and linter functionality to streamline development workflows. | A fast Python linter built in Rust that consolidates multiple linting tools into a single interface. It supports over 500 rules, provides automated fixes for common issues, and runs significantly faster than traditional Python linters on even very large codebases. |
| features.capabilities | `{"autofix":true,"function":"linter_formatter","ci_gating":true,"deployment":"cli_local","open_source":"oss","pricing_model":"free","language_scope":"multi_language","editor_integration":true}` | `{"autofix":true,"function":"linter","deployment":"cli_local","incremental":true,"open_source":"oss","impl_language":"Rust","pricing_model":"free","language_scope":"single_language","editor_integration":true}` |
| integrations.count | 3 | 6 |
| integrations.list | `[{"name":"ESLint"},{"name":"TypeScript ESLint"},{"name":"Prettier"}]` | `[{"name":"Flake8"},{"name":"isort"},{"name":"Autoflake"},{"name":"Pyflakes"},{"name":"pycodestyle"},{"name":"Pylint"}]` |
| language.primary | Rust | Rust |
| license.spdx | Apache-2.0 | MIT |
| market.availability | - | `{"hqCountry":"US","primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true}` | `{"cli":true,"mac":true,"linux":true,"windows":true}` |
| pricing | `{"type":"free","freeTier":true,"sourceUrl":"https://biomejs.dev","retrievedAt":"2026-08-14T12:13:12.495Z"}` | - |
| pricing.free_tier | yes | - |
| pricing.model | commercial | commercial |
| pricing.price_level | free | - |
| release.cadence_days | 7 | 7 |
| release.history | `[{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.5.10","date":"2026-08-21T17:40:37Z","type":"stable","version":"@biomejs/biome@2.5.10"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.5.9","date":"2026-08-17T23:03:27Z","type":"stable","version":"@biomejs/biome@2.5.9"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.5.8","date":"2026-08-11T08:52:51Z","type":"stable","version":"@biomejs/biome@2.5.8"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.5.7","date":"2026-08-04T13:24:41Z","type":"stable","version":"@biomejs/biome@2.5.7"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.5.6","date":"2026-07-28T09:55:21Z","type":"stable","version":"@biomejs/biome@2.5.6"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.5.5","date":"2026-07-21T08:02:44Z","type":"stable","version":"@biomejs/biome@2.5.5"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.5.4","date":"2026-07-15T04:10:08Z","type":"stable","version":"@biomejs/biome@2.5.4"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.5.3","date":"2026-07-08T08:15:22Z","type":"stable","version":"@biomejs/biome@2.5.3"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.5.2","date":"2026-07-01T10:32:44Z","type":"stable","version":"@biomejs/biome@2.5.2"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.5.1","date":"2026-06-23T07:50:58Z","type":"stable","version":"@biomejs/biome@2.5.1"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/js-api%406.0.0","date":"2026-06-12T12:06:53Z","type":"stable","version":"@biomejs/js-api@6.0.0"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.5.0","date":"2026-06-12T12:09:51Z","type":"stable","version":"@biomejs/biome@2.5.0"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.4.16","date":"2026-05-27T13:43:14Z","type":"stable","version":"@biomejs/biome@2.4.16"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.4.15","date":"2026-05-09T17:09:39Z","type":"stable","version":"@biomejs/biome@2.4.15"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.4.14","date":"2026-05-01T19:24:12Z","type":"stable","version":"@biomejs/biome@2.4.14"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.4.13","date":"2026-04-23T15:42:43Z","type":"stable","version":"@biomejs/biome@2.4.13"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.4.12","date":"2026-04-14T18:22:31Z","type":"stable","version":"@biomejs/biome@2.4.12"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.4.11","date":"2026-04-09T16:39:58Z","type":"stable","version":"@biomejs/biome@2.4.11"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.4.10","date":"2026-03-30T16:11:39Z","type":"stable","version":"@biomejs/biome@2.4.10"},{"url":"https://github.com/biomejs/biome/releases/tag/%40biomejs/biome%402.4.9","date":"2026-03-25T12:38:52Z","type":"stable","version":"@biomejs/biome@2.4.9"}]` | `[{"url":"https://github.com/astral-sh/ruff/releases/tag/0.16.4","date":"2026-08-20T17:44:56Z","type":"stable","version":"0.16.4"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.16.3","date":"2026-08-13T15:18:05Z","type":"stable","version":"0.16.3"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.16.2","date":"2026-08-07T13:31:55Z","type":"stable","version":"0.16.2"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.16.1","date":"2026-07-30T19:37:52Z","type":"stable","version":"0.16.1"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.16.0","date":"2026-07-23T19:12:22Z","type":"stable","version":"0.16.0"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.15.22","date":"2026-07-16T15:15:10Z","type":"stable","version":"0.15.22"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.15.21","date":"2026-07-09T20:02:30Z","type":"stable","version":"0.15.21"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.15.20","date":"2026-06-25T17:21:46Z","type":"stable","version":"0.15.20"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.15.19","date":"2026-06-24T01:11:40Z","type":"stable","version":"0.15.19"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.15.18","date":"2026-06-18T18:26:34Z","type":"stable","version":"0.15.18"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.15.17","date":"2026-06-11T17:57:00Z","type":"stable","version":"0.15.17"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.15.16","date":"2026-06-04T16:34:11Z","type":"stable","version":"0.15.16"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.15.15","date":"2026-05-28T14:18:02Z","type":"stable","version":"0.15.15"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.15.14","date":"2026-05-21T14:35:54Z","type":"stable","version":"0.15.14"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.15.13","date":"2026-05-14T13:45:27Z","type":"stable","version":"0.15.13"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.15.12","date":"2026-04-24T18:18:25Z","type":"stable","version":"0.15.12"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.15.11","date":"2026-04-16T18:47:31Z","type":"stable","version":"0.15.11"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.15.10","date":"2026-04-09T14:07:15Z","type":"stable","version":"0.15.10"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.15.9","date":"2026-04-02T18:18:12Z","type":"stable","version":"0.15.9"},{"url":"https://github.com/astral-sh/ruff/releases/tag/0.15.8","date":"2026-03-26T19:09:30Z","type":"stable","version":"0.15.8"}]` |
| security.gdpr | - | yes |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40biomejs%2Fbiome&per_page=100","last_12m":0,"max_severity":null}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=ruff&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Code Quality Tools)

| Capability | Biome | Ruff |
|---|:--:|:--:|
| **Core** |  |  |
| Function | Linter + formatter | Linter |
| Language scope | Multi-language | Single-language |
| Implementation language | - | Rust |
| **Capability** |  |  |
| Autofix | ✓ | ✓ |
| **Config** |  |  |
| Config model | - | - |
| **Extensibility** |  |  |
| Custom rules | - | - |
| **Deployment** |  |  |
| Deployment | CLI-local | 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: Vioscale. Generated 2026-09-01T14:59:06.350Z. "-" = undocumented, not absent.*