# RuboCop vs SpotBugs

**Leader by Vioscale score:** RuboCop

| Attribute | RuboCop | SpotBugs |
|---|---|---|
| **Vioscale score** | 69.7 (53% (medium)) | 53.7 (49% (low)) |
| activity.commits_last_30d | 100 | 34 |
| adoption.dependent_repos | 115,529 | 2,768 |
| adoption.github_stars | 12,899 | 3,925 |
| deployment.options | - | `{"on_prem":true,"self_hosted":true}` |
| description.long | RuboCop is an open-source Ruby linter and formatter that enforces code style based on the Ruby community style guide. It detects code quality issues and can automatically fix many of them, with extensive configuration options and extensibility through community plugins. | An open-source utility that examines Java source code to identify potential programming issues without executing it. It integrates with build tools and IDEs through plugins and supports community-contributed or custom analysis rules. |
| features.capabilities | `{"autofix":true,"function":"linter_formatter","deployment":"cli_local","open_source":"oss","config_model":"config_file","custom_rules":true,"impl_language":"Ruby","pricing_model":"free","language_scope":"single_language","editor_integration":true}` | `{"autofix":false,"function":"static_analyzer","deployment":"cli_local","open_source":"oss","config_model":"rule_packs","custom_rules":true,"impl_language":"Java","pricing_model":"free","language_scope":"single_language","editor_integration":true}` |
| integrations.count | 14 | 6 |
| integrations.list | `[{"name":"rubocop-performance"},{"name":"rubocop-rails"},{"name":"rubocop-rspec"},{"name":"rubocop-minitest"},{"name":"rubocop-rake"},{"name":"rubocop-sequel"},{"name":"rubocop-thread_safety"},{"name":"rubocop-capybara"},{"name":"rubocop-factory_bot"},{"name":"rubocop-rspec_rails"},{"name":"rubocop-i18n"},{"name":"Eglot"},{"name":"Helix"},{"name":"Flycheck"}]` | `[{"name":"Maven"},{"name":"Gradle"},{"name":"Eclipse"},{"name":"Ant"},{"name":"fb-contrib"},{"name":"find-sec-bugs"}]` |
| language.primary | Ruby | Java |
| license.spdx | MIT | LGPL-2.1 |
| platform.support | `{"cli":true}` | `{"cli":true}` |
| pricing | `{"type":"open_source","summary":"Free and open source","freeTier":true,"sourceUrl":"https://rubocop.org/","retrievedAt":"2026-08-14T08:31:22.550Z"}` | `{"type":"open_source","sourceUrl":"https://spotbugs.github.io/","retrievedAt":"2026-08-14T08:33:37.010Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | - |
| release.cadence_days | 16 | 24 |
| release.history | `[{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.90.0","date":"2026-08-24T11:40:21Z","type":"stable","version":"v1.90.0"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.89.0","date":"2026-08-04T09:00:37Z","type":"stable","version":"v1.89.0"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.88.2","date":"2026-07-08T06:22:30Z","type":"stable","version":"v1.88.2"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.88.1","date":"2026-07-01T09:52:01Z","type":"stable","version":"v1.88.1"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.88.0","date":"2026-06-16T05:10:59Z","type":"stable","version":"v1.88.0"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.87.0","date":"2026-05-30T08:52:19Z","type":"stable","version":"v1.87.0"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.86.2","date":"2026-05-14T05:26:06Z","type":"stable","version":"v1.86.2"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.86.1","date":"2026-04-09T06:12:37Z","type":"stable","version":"v1.86.1"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.86.0","date":"2026-03-23T10:39:38Z","type":"stable","version":"v1.86.0"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.85.1","date":"2026-03-05T10:22:56Z","type":"stable","version":"v1.85.1"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.85.0","date":"2026-02-26T09:50:24Z","type":"stable","version":"v1.85.0"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.84.2","date":"2026-02-12T07:25:18Z","type":"stable","version":"v1.84.2"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.84.1","date":"2026-02-03T01:55:56Z","type":"stable","version":"v1.84.1"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.84.0","date":"2026-01-27T09:57:17Z","type":"stable","version":"v1.84.0"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.82.1","date":"2025-12-24T08:47:02Z","type":"stable","version":"v1.82.1"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.82.0","date":"2025-12-17T10:25:17Z","type":"stable","version":"v1.82.0"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.81.7","date":"2025-10-31T09:01:14Z","type":"stable","version":"v1.81.7"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.81.6","date":"2025-10-21T07:34:59Z","type":"stable","version":"v1.81.6"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.81.1","date":"2025-09-26T13:35:08Z","type":"stable","version":"v1.81.1"},{"url":"https://github.com/rubocop/rubocop/releases/tag/v1.81.0","date":"2025-09-25T12:50:13Z","type":"stable","version":"v1.81.0"}]` | `[{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.10.4","date":"2026-08-20T03:22:34Z","type":"stable","version":"4.10.4"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.10.3","date":"2026-07-12T23:54:13Z","type":"stable","version":"4.10.3"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.10.2","date":"2026-06-09T20:24:17Z","type":"stable","version":"4.10.2"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.10.1","date":"2026-06-08T13:19:51Z","type":"stable","version":"4.10.1"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.10.0","date":"2026-06-08T01:28:41Z","type":"stable","version":"4.10.0"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.9.8","date":"2025-10-18T16:45:29Z","type":"stable","version":"4.9.8"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.9.7","date":"2025-10-14T22:32:35Z","type":"stable","version":"4.9.7"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.9.6","date":"2025-09-17T02:07:29Z","type":"stable","version":"4.9.6"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.9.5","date":"2025-09-15T01:58:47Z","type":"stable","version":"4.9.5"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.9.4","date":"2025-08-10T00:26:10Z","type":"stable","version":"4.9.4"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.9.3","date":"2025-03-15T19:18:36Z","type":"stable","version":"4.9.3"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.9.2","date":"2025-03-01T20:12:52Z","type":"stable","version":"4.9.2"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.9.1","date":"2025-02-05T16:59:04Z","type":"stable","version":"4.9.1"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.9.0","date":"2025-01-16T05:16:00Z","type":"stable","version":"4.9.0"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.8.6","date":"2024-06-18T02:46:58Z","type":"stable","version":"4.8.6"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.8.5","date":"2024-05-03T23:22:14Z","type":"stable","version":"4.8.5"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.8.4","date":"2024-04-23T13:33:59Z","type":"stable","version":"4.8.4"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.8.3","date":"2023-12-12T10:47:36Z","type":"stable","version":"4.8.3"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.8.2","date":"2023-11-29T04:06:02Z","type":"stable","version":"4.8.2"},{"url":"https://github.com/spotbugs/spotbugs/releases/tag/4.8.1","date":"2023-11-07T02:19:27Z","type":"stable","version":"4.8.1"}]` |
| reliability.status_page | - | yes |
| security.scorecard | 5.6 | 5.1 |
| security.vulnerabilities | `{"count":1,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=rubygems&package_name=rubocop&per_page=100","last_12m":0,"max_severity":"LOW"}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=com.github.spotbugs%3Aspotbugs-annotations&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Code Quality Tools)

| Capability | RuboCop | SpotBugs |
|---|:--:|:--:|
| **Core** |  |  |
| Function | Linter + formatter | Static analyzer |
| Language scope | Single-language | Single-language |
| Implementation language | Ruby | Java |
| **Capability** |  |  |
| Autofix | ✓ | ✗ |
| **Config** |  |  |
| Config model | Config file | Rule packs |
| **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 2026-09-01T17:06:46.982Z. "-" = undocumented, not absent.*