# JUnit vs Selenium

**Leader by vioscaleAI score:** Selenium

| Attribute | JUnit | Selenium |
|---|---|---|
| **vioscaleAI score** | 59.7 (43% (low)) | 71.7 (76% (high)) |
| activity.commits_last_30d | 63 | 100 |
| adoption.dependent_repos | 569 | 98,124 |
| adoption.github_stars | 7,058 | 34,541 |
| adoption.package_downloads_weekly | - | 6,935,447 |
| content.faq | `[{"answer":"A modern testing framework for Java that provides a foundation for developer-side testing and supports multiple testing approaches. It is indexed under Testing Tools.","source":"https://junit.org","question":"What is JUnit?","confidence":0.6},{"answer":"JUnit is open source, so it can be self-hosted and used at no licence cost. It is released under the EPL-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://junit.org","question":"Is JUnit free to use?","confidence":0.6},{"answer":"JUnit supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://junit.org","question":"What platforms does JUnit support?","confidence":0.6},{"answer":"Yes. JUnit can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://junit.org","question":"Can JUnit be self-hosted?","confidence":0.6},{"answer":"Yes. JUnit is published under the EPL-2.0 licence, a copyleft licence, so check its terms before embedding it in a closed-source product. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/junit-team/junit5","question":"Is JUnit open source?","confidence":0.95}]` | `[{"answer":"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. It is indexed under Testing Tools.","source":"https://www.selenium.dev","question":"What is Selenium?","confidence":0.6},{"answer":"Selenium is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://www.selenium.dev","question":"Is Selenium free to use?","confidence":0.6},{"answer":"Selenium supports Windows, macOS, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.selenium.dev","question":"What platforms does Selenium support?","confidence":0.6},{"answer":"Yes. Selenium can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.selenium.dev","question":"Can Selenium be self-hosted?","confidence":0.6},{"answer":"We have confirmed 4 integrations for Selenium, including Chrome, Firefox, Edge and Appium. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.selenium.dev","question":"What does Selenium integrate with?","confidence":0.6},{"answer":"Yes. Selenium is published under the Apache-2.0 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/SeleniumHQ/selenium","question":"Is Selenium open source?","confidence":0.99}]` |
| deployment.options | `{"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | JUnit 6 is a contemporary testing framework for Java and JVM languages that enables developers to construct and run tests using a variety of methodologies. It requires Java 17 or higher and supports Kotlin 2.1 or later. | Selenium is an open-source testing framework that automates web browsers for testing applications and automating web-based administration tasks across multiple programming languages. |
| features.capabilities | `{"coverage":true,"languages":"Java","assertions":true,"test_types":"unit","ci_integration":true}` | `{"protocol":"multi","languages":"Java, JavaScript, Python, Ruby, .NET","test_types":"e2e","open_source":true,"headless_mode":true,"ci_integration":true,"no_code_recorder":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}` | `{"web":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://junit.org","retrievedAt":"2026-08-14T11:07:09.209Z"}` | `{"type":"open_source","sourceUrl":"https://www.selenium.dev","retrievedAt":"2026-10-13T15:12:44.428Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | 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":"2026-10-13T00:30:25Z","type":"prerelease","version":"nightly"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.51.0","date":"2026-10-09T19:18:18Z","type":"stable","version":"selenium-4.51.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.50.0","date":"2026-09-30T22:16:28Z","type":"stable","version":"selenium-4.50.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.49.0","date":"2026-09-09T15:35:47Z","type":"stable","version":"selenium-4.49.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.48.0","date":"2026-08-27T20:13:03Z","type":"stable","version":"selenium-4.48.0"},{"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"}]` |
| reliability.status_page | - | yes |
| security.scorecard | 8.3 | 2.9 |
| security.trust_center | - | https://www.selenium.dev/categories/security/ |
| 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}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.seleniumhq.selenium%3Aselenium-java&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Testing Tools)

| Capability | JUnit | Selenium |
|---|:--:|:--:|
| **Core** |  |  |
| Test types | Unit | Unit + integration + E2E |
| 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: vioscaleAI. Generated 2026-10-16T19:01:01.789Z. "-" = undocumented, not absent.*