# Gatling vs Selenium

**Leader by Vioscale score:** Selenium

| Attribute | Gatling | Selenium |
|---|---|---|
| **Vioscale score** | 60.4 (49% (low)) | 67.6 (76% (high)) |
| activity.commits_last_30d | - | 95 |
| adoption.github_stars | - | 34,397 |
| adoption.package_downloads_weekly | - | 13,857,103 |
| deployment.options | `{"cloud":true,"hybrid":true,"on_prem":true,"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | A performance engineering platform for automated load testing and continuous performance validation, enabling teams to embed testing into CI/CD pipelines and scale from local to distributed cloud environments. | 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 | `{"mocking":false,"coverage":false,"languages":"JavaScript, TypeScript, Java, Scala, Kotlin","assertions":true,"test_types":"e2e","watch_mode":true,"ci_integration":true,"snapshot_testing":false,"browser_automation":false,"parallel_execution":true}` | `{"languages":"Java, JavaScript, Python, Ruby, .NET","ci_integration":true,"browser_automation":true,"parallel_execution":true}` |
| integrations.count | 18 | 5 |
| integrations.list | `[{"name":"Maven"},{"name":"Gradle"},{"name":"npm"},{"name":"sbt"},{"name":"Terraform"},{"name":"Helm"},{"name":"AWS CloudFormation"},{"name":"AWS CDK"},{"name":"Kubernetes"},{"name":"Docker"},{"name":"Slack"},{"name":"Microsoft Teams"},{"name":"Datadog"},{"name":"Dynatrace"},{"name":"New Relic"},{"name":"InfluxDB"},{"name":"OpenTelemetry"},{"name":"JMeter"}]` | `[{"name":"Chrome"},{"name":"Firefox"},{"name":"Edge"},{"name":"Appium"},{"name":"Chrome for Testing (CfT)"}]` |
| language.primary | - | Java |
| license.spdx | - | Apache-2.0 |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"mac":true,"linux":true,"windows":true}` |
| pricing | `{"type":"subscription","plans":[{"free":false,"name":"Basic","summary":"€89/month billed annually (€1,068/year)","features":["Up to 60,000 VUs","1 hour of testing","1 Load Generator","2 Seats","Community support"],"minSeats":2,"components":[{"kind":"fixed","amount":89,"period":"month","currency":"EUR"}],"description":"Starter-pack for small projects looking for an easy way to start with load testing.","contactSales":false,"includedLimits":{"VUs":"60,000","seats":"2","testing_hours":"1","load_generators":"1"}},{"free":false,"name":"Team","summary":"€356/month billed annually (€4,272/year)","features":["Up to 180,000 VUs","5 hours of testing","3 Load Generators","10 Seats","Distributed testing","Professional support"],"minSeats":10,"components":[{"kind":"fixed","amount":356,"period":"month","currency":"EUR"}],"description":"Best for growing projects and teams looking to integrate load testing into their CI/CD process.","contactSales":false,"includedLimits":{"VUs":"180,000","seats":"10","testing_hours":"5","load_generators":"3"}},{"free":false,"name":"Enterprise","summary":"Custom pricing - contact for quote","features":["Custom limit of VUs","Custom limit of hours","Custom Load Generators","Custom Seats","All features & integrations","Premium support"],"description":"Tailor-made load testing solutions for teams aiming for the highest standards of performance.","contactSales":true}],"addOns":[{"name":"Dedicated IPs"},{"name":"Private Locations"},{"name":"Private Packages"}],"summary":"From €89/month. Free tier available.","currency":"EUR","freeTier":true,"sourceUrl":"https://gatling.io/pricing","retrievedAt":"2026-08-13T18:19:49.250Z","startingPrice":{"amount":89,"period":"month","currency":"EUR"},"billingPeriods":["month","year"]}` | `{"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 | freemium | open_source |
| pricing.price_level | high | free |
| pricing.transparent | yes | yes |
| release.cadence_days | - | 30 |
| release.history | - | `[{"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 | - | 2.7 |

## Capabilities (Testing Tools)

| Capability | Gatling | Selenium |
|---|:--:|:--:|
| **Core** |  |  |
| Test types | Unit + integration + E2E | - |
| Browser automation | ✗ | ✓ |
| Built-in assertion library | ✓ | - |
| Languages | JavaScript, TypeScript, Java, Scala, Kotlin | 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 2026-09-01T17:03:47.539Z. "-" = undocumented, not absent.*