# Locust vs TestCafe

| Attribute | Locust | TestCafe |
|---|---|---|
| **vioscaleAI score** | 57 (49% (low)) | 61 (79% (high)) |
| activity.commits_last_30d | 53 | 7 |
| adoption.dependent_repos | 1,883 | 4,018 |
| adoption.github_stars | 28,210 | 9,895 |
| adoption.package_downloads_weekly | - | 170,522 |
| content.faq | `[{"answer":"A Python-based tool for performance testing that simulates thousands of concurrent users to stress-test web applications. Tests are written as plain Python code and can run distributed across multiple machines. It is indexed under Testing Tools.","source":"https://locust.io","question":"What is Locust?","confidence":0.6},{"answer":"Locust is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.","source":"https://locust.io","question":"Is Locust free to use?","confidence":0.6},{"answer":"Locust supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://locust.io","question":"What platforms does Locust support?","confidence":0.6},{"answer":"Yes. Locust can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://locust.io","question":"Can Locust be self-hosted?","confidence":0.6},{"answer":"Yes. Locust is published under the MIT 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/locustio/locust","question":"Is Locust open source?","confidence":0.95}]` | `[{"answer":"TestCafe is a Node.js-based end-to-end testing framework that enables automated testing of web applications across multiple browsers without requiring Selenium or WebDriver. It supports JavaScript and TypeScript, offers test recording in browsers, and integrates with CI/CD systems. It is indexed under Testing Tools.","source":"https://testcafe.io","question":"What is TestCafe?","confidence":0.6},{"answer":"TestCafe offers a free tier, so you can start without paying. Paid plans start at $20 per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://testcafe.io","question":"Is TestCafe free?","confidence":0.6},{"answer":"TestCafe 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://testcafe.io","question":"What platforms does TestCafe support?","confidence":0.6},{"answer":"Yes. TestCafe can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://testcafe.io","question":"Can TestCafe be self-hosted?","confidence":0.6},{"answer":"Yes. TestCafe is published under the MIT 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/DevExpress/testcafe","question":"Is TestCafe open source?","confidence":0.99}]` |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | An open-source framework for writing performance tests as regular Python code, supporting distributed testing across multiple machines with real-time progress monitoring and the ability to test HTTP and other protocols. | TestCafe is a free, open-source testing framework for automating end-to-end web application tests. It supports JavaScript and TypeScript, includes automatic waiting for page loads and elements, provides assertions and smart actions, and enables parallel test execution. |
| features.capabilities | `{"languages":"Python","ci_integration":true,"browser_automation":true,"parallel_execution":true}` | `{"languages":"JavaScript, TypeScript","assertions":true,"test_types":"e2e","watch_mode":true,"open_source":true,"ci_integration":true,"auto_wait_retry":true,"no_code_recorder":false,"cloud_grid_hosted":true,"browser_automation":true,"parallel_execution":true,"network_interception":true,"ci_cd_integration_breadth":"moderate"}` |
| integrations.count | 4 | 3 |
| integrations.list | `[{"name":"Azure Load Testing","native":true,"category":"testing"},{"name":"Azure DevOps","native":true,"category":"ci"},{"name":"GitHub","native":true,"category":"ci"},{"name":"VS Code","native":true}]` | `[{"name":"AppVeyor"},{"name":"CrossBrowserTesting","direction":"bidirectional"},{"name":"Testingbot","direction":"bidirectional"},{"name":"BrowserStack","direction":"bidirectional"}]` |
| language.primary | Python | JavaScript |
| license.spdx | MIT | MIT |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"mac":true,"linux":true,"windows":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://locust.io","retrievedAt":"2026-08-16T21:32:24.662Z"}` | `{"type":"subscription","plans":[{"free":false,"name":"Personal","summary":"$20/month, first 60 days free","features":["Detailed test run log","Flaky test detection","Test parallelization","Screenshot & video storage","Community support only"],"minSeats":3,"commitment":"monthly","components":[{"kind":"fixed","amount":20,"period":"month","currency":"USD"}],"description":"Good for individual users, low-volume testing.","contactSales":false,"includedLimits":{"test_runs":"7,500/mo","reports_history":"2 weeks","private_projects":"3"}},{"free":false,"name":"Team","summary":"$50/month, first 60 days free","features":["Everything in Personal tier","Complementary TestCafe Studio licenses","Dedicated support","Analytics (coming soon)","Advanced debugging (coming soon)","Additional collaboration capabilities (coming soon)"],"minSeats":20,"commitment":"monthly","components":[{"kind":"fixed","amount":50,"period":"month","currency":"USD"}],"description":"Best choice for medium-sized teams or businesses.","contactSales":false,"includedLimits":{"test_runs":"50,000/mo","reports_history":"1 month","private_projects":"unlimited"}},{"free":false,"name":"Enterprise","summary":"Custom pricing, contact sales","features":["Everything in Team tier","Self-hosted solution (coming soon)","SSO (coming soon)","Enterprise features (coming soon)"],"description":"Unlimited testing for large-scale companies.","contactSales":true,"includedLimits":{"users":"unlimited","test_runs":"unlimited","reports_history":"unlimited","private_projects":"unlimited"}}],"summary":"From $20/month for individuals. Free tier available (open-source framework). 60-day free trial on paid plans.","currency":"USD","freeTier":true,"sourceUrl":"https://testcafe.io","retrievedAt":"2026-08-03T20:56:55.093Z","freeTrialDays":60,"startingPrice":{"amount":20,"period":"month","currency":"USD"},"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | yes |
| release.cadence_days | 13 | 20 |
| release.history | `[{"url":"https://github.com/locustio/locust/releases/tag/2.46.7","date":"2026-10-04T20:14:09Z","type":"stable","version":"2.46.7"},{"url":"https://github.com/locustio/locust/releases/tag/2.46.6","date":"2026-09-17T17:37:05Z","type":"stable","version":"2.46.6"},{"url":"https://github.com/locustio/locust/releases/tag/2.46.5","date":"2026-09-07T06:44:43Z","type":"stable","version":"2.46.5"},{"url":"https://github.com/locustio/locust/releases/tag/2.46.4","date":"2026-08-23T11:40:06Z","type":"stable","version":"2.46.4"},{"url":"https://github.com/locustio/locust/releases/tag/2.46.3","date":"2026-08-01T10:10:38Z","type":"stable","version":"2.46.3"},{"url":"https://github.com/locustio/locust/releases/tag/2.46.2","date":"2026-07-24T19:57:38Z","type":"stable","version":"2.46.2"},{"url":"https://github.com/locustio/locust/releases/tag/2.46.1","date":"2026-07-21T18:53:03Z","type":"stable","version":"2.46.1"},{"url":"https://github.com/locustio/locust/releases/tag/2.46.0","date":"2026-07-19T14:29:10Z","type":"stable","version":"2.46.0"},{"url":"https://github.com/locustio/locust/releases/tag/2.45.0","date":"2026-07-09T08:10:23Z","type":"stable","version":"2.45.0"},{"url":"https://github.com/locustio/locust/releases/tag/2.44.4","date":"2026-06-18T12:24:58Z","type":"stable","version":"2.44.4"},{"url":"https://github.com/locustio/locust/releases/tag/2.44.3","date":"2026-06-12T10:57:24Z","type":"stable","version":"2.44.3"},{"url":"https://github.com/locustio/locust/releases/tag/2.44.2","date":"2026-06-12T10:39:49Z","type":"stable","version":"2.44.2"},{"url":"https://github.com/locustio/locust/releases/tag/2.44.1","date":"2026-06-01T22:32:28Z","type":"stable","version":"2.44.1"},{"url":"https://github.com/locustio/locust/releases/tag/2.44.0","date":"2026-05-11T20:31:38Z","type":"stable","version":"2.44.0"},{"url":"https://github.com/locustio/locust/releases/tag/2.43.4","date":"2026-04-01T20:32:51Z","type":"stable","version":"2.43.4"},{"url":"https://github.com/locustio/locust/releases/tag/2.43.3","date":"2026-02-12T09:46:25Z","type":"stable","version":"2.43.3"},{"url":"https://github.com/locustio/locust/releases/tag/2.43.2","date":"2026-02-01T10:45:39Z","type":"stable","version":"2.43.2"},{"url":"https://github.com/locustio/locust/releases/tag/2.43.1","date":"2026-01-12T19:21:45Z","type":"stable","version":"2.43.1"},{"url":"https://github.com/locustio/locust/releases/tag/2.43.0","date":"2025-12-30T08:49:59Z","type":"stable","version":"2.43.0"},{"url":"https://github.com/locustio/locust/releases/tag/2.42.6","date":"2025-11-29T17:31:00Z","type":"stable","version":"2.42.6"}]` | `[{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.7.6","date":"2026-07-07T10:46:24Z","type":"stable","version":"v3.7.6"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.7.5","date":"2026-06-16T14:10:57Z","type":"stable","version":"v3.7.5"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.7.4","date":"2026-01-19T05:08:35Z","type":"stable","version":"v3.7.4"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.7.3","date":"2025-12-22T14:24:18Z","type":"stable","version":"v3.7.3"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.7.2","date":"2025-02-18T14:51:14Z","type":"stable","version":"v3.7.2"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.7.2-rc.1","date":"2025-02-13T12:56:14Z","type":"prerelease","version":"v3.7.2-rc.1"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.7.1","date":"2024-12-18T07:40:54Z","type":"stable","version":"v3.7.1"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.7.1-rc.1","date":"2024-12-13T06:52:03Z","type":"prerelease","version":"v3.7.1-rc.1"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.7.0","date":"2024-11-04T13:50:10Z","type":"stable","version":"v3.7.0"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.7.0-rc.4","date":"2024-10-31T13:11:32Z","type":"prerelease","version":"v3.7.0-rc.4"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.7.0-rc.3","date":"2024-10-30T12:52:55Z","type":"prerelease","version":"v3.7.0-rc.3"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.7.0-rc.2","date":"2024-10-24T13:13:48Z","type":"prerelease","version":"v3.7.0-rc.2"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.7.0-rc.1","date":"2024-10-18T11:38:50Z","type":"prerelease","version":"v3.7.0-rc.1"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.6.2","date":"2024-07-03T07:49:00Z","type":"stable","version":"v3.6.2"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.6.2-rc.1","date":"2024-07-01T14:22:58Z","type":"prerelease","version":"v3.6.2-rc.1"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.6.1","date":"2024-06-10T11:51:16Z","type":"stable","version":"v3.6.1"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.6.1-rc.1","date":"2024-06-04T11:03:46Z","type":"prerelease","version":"v3.6.1-rc.1"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.6.0","date":"2024-04-25T11:46:06Z","type":"stable","version":"v3.6.0"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.6.0-rc.1","date":"2024-04-23T06:48:12Z","type":"prerelease","version":"v3.6.0-rc.1"},{"url":"https://github.com/DevExpress/testcafe/releases/tag/v3.5.0","date":"2023-12-28T06:10:52Z","type":"stable","version":"v3.5.0"}]` |
| security.scorecard | 6.3 | 5.8 |
| security.vulnerabilities | `{"count":1,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=locust&per_page=100","last_12m":0,"max_severity":"MODERATE"}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=testcafe&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Testing Tools)

| Capability | Locust | TestCafe |
|---|:--:|:--:|
| **Core** |  |  |
| Test types | - | Unit + integration + E2E |
| Browser automation | ✓ | ✓ |
| Built-in assertion library | - | ✓ |
| Languages | Python | JavaScript, TypeScript |
| **Isolation** |  |  |
| Mocking / stubbing | - | - |
| **Techniques** |  |  |
| Snapshot testing | - | - |
| **Performance** |  |  |
| Parallel execution | ✓ | ✓ |
| **Insight** |  |  |
| Code coverage | - | - |
| **DX** |  |  |
| Watch mode | - | ✓ |
| **Ops** |  |  |
| CI integration | ✓ | ✓ |

*Source: vioscaleAI. Generated 2026-10-17T05:42:42.962Z. "-" = undocumented, not absent.*