# Gatling vs Jest

**Leader by vioscaleAI score:** Jest

| Attribute | Gatling | Jest |
|---|---|---|
| **vioscaleAI score** | 57.4 (76% (high)) | 79.8 (69% (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":"Gatling enables teams to design complex load tests, manage testing infrastructure globally, and transform test results into actionable insights. Tests are written as code in multiple languages, integrated directly into CI/CD pipelines, and monitored through real-time dashboards. It is indexed under Testing Tools.","source":"https://gatling.io/pricing","question":"What is Gatling?","confidence":0.6},{"answer":"Gatling offers a free tier, so you can start without paying. Paid plans start at €89 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://gatling.io/pricing","question":"Is Gatling free?","confidence":0.6},{"answer":"Gatling supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://gatling.io/pricing","question":"What platforms does Gatling support?","confidence":0.6},{"answer":"Yes. Gatling can be deployed cloud / SaaS, hybrid and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://gatling.io/pricing","question":"Can Gatling be self-hosted?","confidence":0.6},{"answer":"We have confirmed 20 integrations for Gatling, including Maven, Gradle, npm, sbt, Terraform, Helm, AWS CloudFormation and AWS CDK, plus 12 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://gatling.io/pricing","question":"What does Gatling integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2 and GDPR for Gatling. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Gatling not holding them. Always confirm compliance directly before you rely on it.","source":"https://gatling.io/security","question":"What security certifications does Gatling have?","confidence":0.7}]` | `[{"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}]` |
| deployment.options | `{"cloud":true,"hybrid":true,"self_hosted":true}` | - |
| description.long | A load testing platform that enables teams to simulate concurrent traffic against applications to measure performance under stress. Supports multiple protocols, integrates with CI/CD pipelines, and provides real-time dashboards and analysis to catch performance regressions early. | 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. |
| features.capabilities | `{"mocking":true,"coverage":false,"languages":"JavaScript, TypeScript, Java, Scala, Kotlin","assertions":true,"test_types":"e2e","watch_mode":true,"ci_integration":true,"snapshot_testing":false,"browser_automation":true,"parallel_execution":true}` | `{"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}` |
| integrations.count | 24 | 7 |
| 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":"Jira","native":true,"category":"project_management","direction":"outbound"},{"name":"Postman","native":true,"category":"testing","direction":"inbound"},{"name":"Jira Cloud","native":true,"category":"project_management","direction":"bidirectional"},{"name":"GitHub","native":true,"category":"vcs","direction":"inbound"},{"name":"Circle CI","native":true,"category":"ci_cd","direction":"bidirectional"},{"name":"Azure DevOps","native":true,"category":"ci_cd","direction":"bidirectional"},{"name":"AWS CodeBuild","native":true,"category":"ci_cd","direction":"bidirectional"},{"name":"Google Cloud Build","native":true,"category":"ci_cd","direction":"bidirectional"},{"name":"GitLab CI","native":true,"category":"ci_cd"},{"name":"Jenkins","native":true,"category":"ci_cd"},{"name":"Buildkite","native":true,"category":"ci_cd","direction":"bidirectional"},{"name":"Tekton","native":true,"category":"ci_cd"},{"name":"Concourse","native":true,"category":"ci_cd"},{"name":"Argo","native":true,"category":"ci_cd"},{"name":"LoadRunner","native":true,"category":"testing","direction":"inbound"},{"name":"VS Code","native":true,"category":"ide"},{"name":"Cursor","native":true,"category":"ide"}]` | `[{"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}]` |
| language.primary | - | TypeScript |
| license.spdx | - | MIT |
| market.availability | `{"hqCountry":"FR","primaryMarkets":["EU","US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"source":"https://jestjs.io","hqCountry":"US","confidence":0.95,"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"cli":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","freeTier":true,"sourceUrl":"https://jestjs.io","retrievedAt":"2026-08-14T11:04:15.584Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | commercial |
| pricing.price_level | high | free |
| pricing.starting_price | `{"amount":89,"currency":"EUR"}` | - |
| pricing.transparent | yes | - |
| 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"}]` |
| security.certifications | `[{"name":"SOC 2 Type II","level":"Type II","status":"active","auditor":"Bastion Technologies"},{"name":"GDPR & CNIL","status":"active"}]` | - |
| security.gdpr | yes | - |
| security.soc2 | yes | - |
| security.trust_center | https://gatling.io/security | - |
| 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 | Gatling | Jest |
|---|:--:|:--:|
| **Core** |  |  |
| Test types | Unit + integration + E2E | Unit |
| Browser automation | ✓ | ✗ |
| Built-in assertion library | ✓ | ✓ |
| Languages | JavaScript, TypeScript, Java, Scala, Kotlin | JavaScript, TypeScript |
| **Isolation** |  |  |
| Mocking / stubbing | ✓ | ✓ |
| **Techniques** |  |  |
| Snapshot testing | ✗ | ✓ |
| **Performance** |  |  |
| Parallel execution | ✓ | ✓ |
| **Insight** |  |  |
| Code coverage | ✗ | ✓ |
| **DX** |  |  |
| Watch mode | ✓ | ✓ |
| **Ops** |  |  |
| CI integration | ✓ | ✓ |

*Source: vioscaleAI. Generated 2026-10-16T14:45:49.122Z. "-" = undocumented, not absent.*