# JUnit vs Selenium

| Attribute | JUnit | Selenium |
|---|---|---|
| **Vioscale score** | 67 (43% (low)) | 67.6 (76% (high)) |
| activity.commits_last_30d | 78 | 95 |
| adoption.dependent_repos | 569 | - |
| adoption.github_stars | 7,041 | 34,397 |
| adoption.package_downloads_weekly | - | 13,857,103 |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | A modern testing framework for Java that provides a foundation for developer-side testing and supports multiple testing approaches. | Open-source tool that automates web browsers to enable automated testing of web applications, regression testing, and automation of repetitive web-based administrative tasks. Includes WebDriver for robust test automation, IDE for record-and-playback scripting, and Grid for distributed test execution. |
| features.capabilities | `{"languages":"Java","assertions":true,"test_types":"unit","ci_integration":true}` | `{"languages":"Java, JavaScript, Python, Ruby, .NET","ci_integration":true,"browser_automation":true,"parallel_execution":true}` |
| integrations.count | - | 5 |
| integrations.list | - | `[{"name":"Chrome"},{"name":"Firefox"},{"name":"Edge"},{"name":"Appium"},{"name":"Chrome for Testing (CfT)"}]` |
| language.primary | Java | Java |
| license.spdx | EPL-2.0 | Apache-2.0 |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true}` | `{"cli":true,"mac":true,"linux":true,"windows":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://junit.org","retrievedAt":"2026-08-14T11:07:09.209Z"}` | `{"type":"open_source","summary":"Free and open-source (Apache 2.0 license)","freeTier":true,"sourceUrl":"https://www.selenium.dev","retrievedAt":"2026-08-14T11:07:50.782Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | yes |
| release.cadence_days | 16 | 30 |
| release.history | `[{"url":"https://github.com/junit-team/junit-framework/releases/tag/r6.1.3","date":"2026-08-07T13:11:01Z","type":"stable","version":"r6.1.3"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r6.1.2","date":"2026-07-12T13:08:55Z","type":"stable","version":"r6.1.2"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r6.1.1","date":"2026-06-28T10:11:16Z","type":"stable","version":"r6.1.1"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r6.1.0","date":"2026-05-19T19:54:34Z","type":"stable","version":"r6.1.0"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r5.14.4","date":"2026-04-26T11:59:08Z","type":"stable","version":"r5.14.4"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r6.1.0-RC1","date":"2026-04-25T12:42:19Z","type":"prerelease","version":"r6.1.0-RC1"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r6.0.3","date":"2026-02-15T15:20:56Z","type":"stable","version":"r6.0.3"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r5.14.3","date":"2026-02-15T13:27:11Z","type":"stable","version":"r5.14.3"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r6.0.2","date":"2026-01-06T17:08:43Z","type":"stable","version":"r6.0.2"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r5.14.2","date":"2026-01-06T17:07:49Z","type":"stable","version":"r5.14.2"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r6.1.0-M1","date":"2025-11-17T17:35:56Z","type":"prerelease","version":"r6.1.0-M1"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r6.0.1","date":"2025-10-31T18:13:15Z","type":"stable","version":"r6.0.1"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r5.14.1","date":"2025-10-31T15:21:48Z","type":"stable","version":"r5.14.1"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r6.0.0","date":"2025-09-30T08:38:19Z","type":"stable","version":"r6.0.0"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r5.14.0","date":"2025-09-30T07:49:49Z","type":"stable","version":"r5.14.0"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r5.14.0-RC1","date":"2025-09-23T14:50:27Z","type":"prerelease","version":"r5.14.0-RC1"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r6.0.0-RC3","date":"2025-09-14T12:30:27Z","type":"prerelease","version":"r6.0.0-RC3"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r6.0.0-RC2","date":"2025-08-25T16:00:56Z","type":"prerelease","version":"r6.0.0-RC2"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r6.0.0-RC1","date":"2025-08-20T08:38:19Z","type":"prerelease","version":"r6.0.0-RC1"},{"url":"https://github.com/junit-team/junit-framework/releases/tag/r6.0.0-M2","date":"2025-07-22T08:54:16Z","type":"prerelease","version":"r6.0.0-M2"}]` | `[{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/nightly","date":"2026-08-26T00:14:38Z","type":"prerelease","version":"nightly"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.47.0","date":"2026-08-10T18:00:07Z","type":"stable","version":"selenium-4.47.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.46.0","date":"2026-07-11T00:47:53Z","type":"stable","version":"selenium-4.46.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.45.0","date":"2026-06-16T13:59:48Z","type":"stable","version":"selenium-4.45.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.44.0","date":"2026-05-12T23:58:59Z","type":"stable","version":"selenium-4.44.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.43.0","date":"2026-04-10T06:52:53Z","type":"stable","version":"selenium-4.43.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.42.0","date":"2026-04-09T11:53:47Z","type":"stable","version":"selenium-4.42.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.41.0","date":"2026-02-20T15:57:35Z","type":"stable","version":"selenium-4.41.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.40.0","date":"2026-01-18T23:53:16Z","type":"stable","version":"selenium-4.40.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.39.0","date":"2025-12-06T22:53:26Z","type":"stable","version":"selenium-4.39.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.38.0","date":"2025-10-25T05:01:29Z","type":"stable","version":"selenium-4.38.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.37.0","date":"2025-10-18T05:02:55Z","type":"stable","version":"selenium-4.37.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.36.0","date":"2025-10-02T15:37:23Z","type":"stable","version":"selenium-4.36.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.35.0","date":"2025-08-12T15:44:30Z","type":"stable","version":"selenium-4.35.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.34.0","date":"2025-06-29T18:25:54Z","type":"stable","version":"selenium-4.34.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.33.0","date":"2025-05-23T17:42:58Z","type":"stable","version":"selenium-4.33.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.32.0","date":"2025-05-02T20:34:32Z","type":"stable","version":"selenium-4.32.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.31.0","date":"2025-04-05T02:49:03Z","type":"stable","version":"selenium-4.31.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.30.0","date":"2025-03-21T22:33:48Z","type":"stable","version":"selenium-4.30.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.29.0","date":"2025-02-20T12:14:50Z","type":"stable","version":"selenium-4.29.0"}]` |
| reliability.status_page | - | yes |
| security.scorecard | 8.3 | 2.7 |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.junit.platform%3Ajunit-platform-surefire-provider&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (Testing Tools)

| Capability | JUnit | Selenium |
|---|:--:|:--:|
| **Core** |  |  |
| Test types | Unit | - |
| Browser automation | - | ✓ |
| Built-in assertion library | ✓ | - |
| Languages | Java | Java, JavaScript, Python, Ruby, .NET |
| **Isolation** |  |  |
| Mocking / stubbing | - | - |
| **Techniques** |  |  |
| Snapshot testing | - | - |
| **Performance** |  |  |
| Parallel execution | - | ✓ |
| **Insight** |  |  |
| Code coverage | - | - |
| **DX** |  |  |
| Watch mode | - | - |
| **Ops** |  |  |
| CI integration | ✓ | ✓ |

*Source: Vioscale. Generated 2026-09-01T16:28:25.655Z. "-" = undocumented, not absent.*