# Jest vs LambdaTest

**Leader by vioscaleAI score:** Jest

| Attribute | Jest | LambdaTest |
|---|---|---|
| **vioscaleAI score** | 79.8 (69% (medium)) | 57.3 (73% (medium)) |
| activity.commits_last_30d | 71 | - |
| adoption.dependent_repos | 2,802,343 | - |
| adoption.github_stars | 45,478 | - |
| adoption.package_downloads_weekly | 46,829,919 | - |
| adoption.stackoverflow_questions | 44,000 | - |
| content.faq | `[{"answer":"Jest is a testing framework for JavaScript projects that provides tools for writing and running unit tests. It is designed for developers building applications with JavaScript, TypeScript, React, Angular, Vue, and Node.js, and emphasizes minimal configuration while offering extensive built-in testing capabilities.","source":"https://jestjs.io","question":"What is Jest and who should use it?","confidence":0.95},{"answer":"Yes, Jest is open-source and free to use under an open-source license, maintained by the OpenJS Foundation and its community contributors. There is no commercial licensing model, paid tier, or associated costs for using Jest.","source":"https://jestjs.io","question":"Is Jest open-source and free to use?","confidence":0.95},{"answer":"Jest can be installed as a development dependency using npm, yarn, pnpm, or bun by running a single install command. After installation, you add a test script to your package.json, create test files alongside your source code, and run tests immediately with minimal or no configuration required.","source":"https://jestjs.io/docs/getting-started","question":"How do I install and get started with Jest?","confidence":0.95},{"answer":"Snapshot testing captures the output of a component or function and stores it in a reference file, then compares future test runs against that snapshot to detect unintended changes. This is particularly useful for testing React components, API responses, and other complex serialized values where checking exact output structure is important.","source":"https://jestjs.io/docs/snapshot-testing","question":"What does Jest's snapshot testing feature do?","confidence":0.95},{"answer":"Mock functions let you replace real function implementations with test versions that capture how they were called, what arguments they received, and what they returned. This enables isolation testing and verification of interactions between code units without depending on external implementations.","source":"https://jestjs.io/docs/mock-functions","question":"What are mock functions in Jest and why use them?","confidence":0.95},{"answer":"Yes, Jest includes built-in code coverage reporting that can be enabled with the --coverage flag, which generates coverage reports without requiring additional setup or external tools. You can configure coverage collection to target specific files, specify coverage thresholds, and choose between different coverage providers.","source":"https://jestjs.io/docs/cli","question":"Does Jest provide built-in code coverage reporting?","confidence":0.92},{"answer":"Jest supports TypeScript through ts-jest or Babel setup, and integrates with popular frameworks including React, Angular, Vue, and Node.js. The framework is flexible and extensible, allowing configuration for different transpilers and module systems including webpack and CommonJS environments.","source":"https://jestjs.io/docs/getting-started","question":"Can Jest work with TypeScript and other JavaScript frameworks?","confidence":0.93},{"answer":"Jest emphasizes zero-configuration setup, parallel test execution for speed, built-in snapshot testing, comprehensive mocking and assertion APIs, clear error messages, and code coverage out-of-the-box. These features make it production-ready without requiring a complex learning curve or setup for typical JavaScript projects.","source":"https://jestjs.io","question":"What are Jest's core strengths as a testing framework?","confidence":0.9}]` | `[{"answer":"TestMu AI (formerly LambdaTest) is a cloud-based testing platform that enables organizations to test their web and mobile applications across thousands of real devices and browsers. It combines AI agents for test planning and authoring with a scalable cloud infrastructure for parallel execution. It is indexed under Testing Tools.","source":"https://www.lambdatest.com","question":"What is LambdaTest?","confidence":0.6},{"answer":"LambdaTest offers a free tier, so you can start without paying. Paid plans start at $19 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://www.lambdatest.com","question":"Is LambdaTest free?","confidence":0.6},{"answer":"LambdaTest supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.lambdatest.com","question":"What platforms does LambdaTest support?","confidence":0.6},{"answer":"Yes. LambdaTest can be deployed cloud / SaaS and on-premise, so it does not have to run on the vendor's infrastructure.","source":"https://www.lambdatest.com","question":"Can LambdaTest be self-hosted?","confidence":0.6},{"answer":"We have confirmed 17 integrations for LambdaTest, including Jenkins, CircleCI, TeamCity, Bamboo, GitLab, Travis CI, GoCD and Jira, plus 9 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.lambdatest.com","question":"What does LambdaTest integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2 and GDPR for LambdaTest. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as LambdaTest not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.lambdatest.com/security","question":"What security certifications does LambdaTest have?","confidence":0.7},{"answer":"LambdaTest is available worldwide. The vendor is headquartered in the United States.","source":"https://www.lambdatest.com","question":"Where is LambdaTest available?","confidence":0.75}]` |
| deployment.options | - | `{"cloud":true,"on_prem":true}` |
| description.long | Jest is a testing tool designed to work automatically with most JavaScript projects, providing features like test snapshots and watch mode for interactive test-driven development. | A comprehensive testing platform that uses AI agents to orchestrate automated testing for web applications, mobile apps, and AI systems. Includes real device clouds, browser automation, visual testing, and accessibility compliance testing. |
| features.capabilities | `{"mocking":true,"coverage":true,"languages":"JavaScript, TypeScript","assertions":true,"test_types":"unit","watch_mode":true,"ci_integration":true,"snapshot_testing":true,"browser_automation":false,"parallel_execution":true}` | `{"languages":"Python, Java, JavaScript, TypeScript","ci_integration":true,"snapshot_testing":true,"browser_automation":true,"parallel_execution":true}` |
| integrations.count | 7 | 120 |
| integrations.list | `[{"name":"React"},{"name":"Angular"},{"name":"Vue"},{"name":"TypeScript"},{"name":"Babel"},{"name":"Node"},{"name":"React Native","native":true},{"name":"webpack","native":true},{"name":"Vite","native":true},{"name":"Parcel","native":true}]` | `[{"name":"Jenkins"},{"name":"CircleCI"},{"name":"TeamCity"},{"name":"Bamboo"},{"name":"GitLab"},{"name":"Travis CI"},{"name":"GoCD"},{"name":"Jira"},{"name":"GitHub Actions","category":"ci"},{"name":"Git","category":"vcs"},{"name":"Slack","category":"chat"},{"name":"Selenium","category":"testing_framework"},{"name":"Appium","category":"testing_framework"},{"name":"Playwright","category":"testing_framework"},{"name":"Karate","category":"api_testing"},{"name":"Storybook","category":"development"},{"name":"Docker","category":"infrastructure"},{"name":"Kubernetes","category":"orchestration"},{"name":"Firebase","native":true,"category":"mobile","direction":"bidirectional"}]` |
| language.primary | TypeScript | - |
| license.spdx | MIT | - |
| market.availability | `{"source":"https://jestjs.io","hqCountry":"US","confidence":0.95,"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"hqCountry":"US","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true}` | `{"cli":true,"ios":true,"web":true,"android":true}` |
| pricing | `{"type":"open_source","summary":"Free and open source","freeTier":true,"sourceUrl":"https://jestjs.io","retrievedAt":"2026-08-14T11:04:15.584Z"}` | `{"type":"subscription","plans":[{"free":true,"name":"Free","summary":"$0/month, 200 credits","features":["200 credits per month","Local test authoring via CLI","Auto-heal & vision","Test Manager access"],"commitment":"monthly","components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"credits":"200/month"}},{"free":false,"name":"Kane CLI Starter","summary":"$19/month, 2,000 credits","features":["2,000 credits per month","Local test authoring via CLI","Auto-heal & vision","Test Manager access"],"commitment":"monthly","components":[{"kind":"fixed","amount":19,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"credits":"2000/month"}},{"free":false,"name":"Kane CLI Pro","summary":"$99/month, 10,000 credits","features":["10,000 credits per month","Local test authoring via CLI","Auto-heal & vision","Test Manager license","HyperExecute 100 min/month","Tunnel support"],"commitment":"monthly","components":[{"kind":"fixed","amount":99,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"credits":"10000/month","hyperexecute_mins":"100/month"}},{"free":false,"name":"Enterprise","summary":"Contact sales","features":["Custom credits","Extended HyperExecute execution","Multiple Test Manager seats","Dedicated 24x7 support","SSO","Advanced access control","IP whitelisting"],"contactSales":true}],"summary":"From $19/month. Free tier with 200 credits/month.","currency":"USD","freeTier":true,"sourceUrl":"https://www.lambdatest.com","retrievedAt":"2026-08-03T21:10:59.384Z","startingPrice":{"amount":19,"period":"month","currency":"USD"},"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | free |
| pricing.price_level | free | free |
| pricing.transparent | - | no |
| release.cadence_days | 13 | - |
| release.history | `[{"url":"https://github.com/jestjs/jest/releases/tag/v30.5.2","date":"2026-09-18T13:57:03Z","type":"stable","version":"v30.5.2"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.5.1","date":"2026-09-01T07:58:26Z","type":"stable","version":"v30.5.1"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.5.0","date":"2026-08-28T08:29:30Z","type":"stable","version":"v30.5.0"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.4.2","date":"2026-05-09T00:32:04Z","type":"stable","version":"v30.4.2"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.4.1","date":"2026-05-08T08:42:32Z","type":"stable","version":"v30.4.1"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.4.0","date":"2026-05-07T18:47:24Z","type":"stable","version":"v30.4.0"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.3.0","date":"2026-03-10T02:01:31Z","type":"stable","version":"v30.3.0"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.2.0","date":"2025-09-28T07:33:58Z","type":"stable","version":"v30.2.0"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.1.3","date":"2025-09-03T07:49:01Z","type":"stable","version":"v30.1.3"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.1.2","date":"2025-09-03T07:48:42Z","type":"stable","version":"v30.1.2"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.1.1","date":"2025-08-27T13:44:47Z","type":"stable","version":"v30.1.1"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.1.0","date":"2025-08-27T04:53:13Z","type":"stable","version":"v30.1.0"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.0.2","date":"2025-06-19T11:01:23Z","type":"stable","version":"v30.0.2"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.0.1","date":"2025-06-18T23:36:13Z","type":"stable","version":"v30.0.1"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.0.0","date":"2025-06-10T02:23:20Z","type":"stable","version":"v30.0.0"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.0.0-beta.4","date":"2025-05-27T07:05:50Z","type":"prerelease","version":"v30.0.0-beta.4"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.0.0-beta.3","date":"2025-05-27T03:34:40Z","type":"prerelease","version":"v30.0.0-beta.3"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.0.0-alpha.7","date":"2025-01-30T08:33:37Z","type":"prerelease","version":"v30.0.0-alpha.7"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.0.0-alpha.6","date":"2024-08-08T07:46:22Z","type":"prerelease","version":"v30.0.0-alpha.6"},{"url":"https://github.com/jestjs/jest/releases/tag/v30.0.0-alpha.5","date":"2024-05-30T12:47:54Z","type":"prerelease","version":"v30.0.0-alpha.5"}]` | - |
| reliability.status_page | - | yes |
| security.gdpr | - | yes |
| security.soc2 | - | yes |
| security.trust_center | - | https://www.lambdatest.com/blog/aoda-compliance/ |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40jest%2Ftypes&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (Testing Tools)

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

*Source: vioscaleAI. Generated 2026-10-16T21:45:50.260Z. "-" = undocumented, not absent.*