# Cypress vs Vitest

| Attribute | Cypress | Vitest |
|---|---|---|
| **vioscaleAI score** | 70.6 (77% (high)) | 74.1 (70% (medium)) |
| activity.commits_last_30d | 100 | 100 |
| adoption.dependent_repos | 126,733 | 30,558 |
| adoption.github_stars | 51,043 | 17,212 |
| adoption.package_downloads_weekly | 5,949,802 | 125,766,874 |
| adoption.stackoverflow_questions | 30,000 | 1,200 |
| content.faq | `[{"answer":"An open-source testing framework for JavaScript applications that enables developers to write, run, and debug front-end tests. Supports end-to-end and component testing with a cloud-based service option available. It is indexed under Testing Tools.","source":"https://www.cypress.io/pricing","question":"What is Cypress?","confidence":0.6},{"answer":"Cypress is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. A commercial or hosted edition starts at $4.40. 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.cypress.io","question":"Is Cypress free to use?","confidence":0.6},{"answer":"Cypress 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.cypress.io/pricing","question":"What platforms does Cypress support?","confidence":0.6},{"answer":"Yes. Cypress can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.cypress.io/pricing","question":"Can Cypress be self-hosted?","confidence":0.6},{"answer":"We have confirmed 3 integrations for Cypress, including Jira, GitHub Enterprise and GitLab Enterprise. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.cypress.io","question":"What does Cypress integrate with?","confidence":0.6},{"answer":"We have independently confirmed ISO 27001 and GDPR for Cypress. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Cypress not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.cypress.io/security","question":"What security certifications does Cypress have?","confidence":0.7},{"answer":"Yes. Cypress 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/cypress-io/cypress","question":"Is Cypress open source?","confidence":0.99},{"answer":"Cypress is available worldwide. Its primary market is the United States.","source":"https://www.cypress.io","question":"Where is Cypress available?","confidence":0.5}]` | `[{"answer":"Vitest is a testing framework designed specifically for projects built with Vite. It reuses Vite's configuration and build plugins, eliminating duplicate setup when your application and tests share the same build pipeline. Developers using Vite benefit from streamlined testing without configuration overhead, though Vitest also works with projects that don't use Vite.","source":"https://vitest.dev","question":"What is Vitest and who should use it?","confidence":0.95},{"answer":"Yes, Vitest natively supports ESM, TypeScript, and JSX without requiring additional configuration or build steps. The framework automatically recognizes these modern JavaScript features through its integration with Vite's transformation pipeline, reducing setup complexity for developers working with contemporary toolchains.","source":"https://vitest.dev","question":"Does Vitest support TypeScript, JSX, and modern JavaScript out of the box?","confidence":0.95},{"answer":"Vitest's watch mode intelligently reruns only the tests affected by changes in your code, similar to how Vite's Hot Module Reload works for development. This approach is faster than manually filtering tests or waiting for full test suite reruns after each edit, improving developer experience during development cycles.","source":"https://vitest.dev","question":"How does Vitest's watch mode differ from other test runners?","confidence":0.92},{"answer":"Yes, Vitest includes a browser mode that executes tests in real browsers using Playwright (supporting Chromium, Firefox, and WebKit) or WebdriverIO (supporting Chrome, Firefox, Edge, and Safari). This enables genuine DOM interaction testing, component testing, and visual regression detection rather than relying on DOM simulation.","source":"https://vitest.dev/guide/browser.html","question":"Can I run tests in actual browsers with Vitest?","confidence":0.93},{"answer":"Vitest provides API compatibility with Jest, including support for `expect()` assertions, snapshot testing, and mocking. This makes it a potential drop-in replacement for Jest projects, though Vitest is optimized for Vite-based applications and may require configuration adjustments if your project uses other build systems.","source":"https://vitest.dev/guide/comparisons.html","question":"Is Vitest compatible with Jest, and can I migrate from Jest?","confidence":0.91},{"answer":"Vitest supports two coverage providers: V8 (native, faster, lower memory usage) and Istanbul (works with any JavaScript runtime but slower). Both providers generate multiple report formats including HTML, text summaries, and LCOV, and allow filtering which files to include or exclude from coverage calculations.","source":"https://vitest.dev/guide/coverage.html","question":"What code coverage options does Vitest provide?","confidence":0.93},{"answer":"Vitest requires Node.js version 20 or later and Vite version 6 or later. It can be installed and run through common package managers including npm, yarn, pnpm, and bun, making it accessible to most JavaScript development environments.","source":"https://vitest.dev/guide/","question":"What are Vitest's system requirements and minimum dependencies?","confidence":0.94},{"answer":"Yes, Vitest is completely free and open-source, maintained by a community of contributors with support from corporate sponsors. There is no licensing cost, commercial licensing model, or requirement to pay for core features or basic usage.","source":"https://vitest.dev","question":"Is Vitest free and open-source?","confidence":0.94}]` |
| deployment.options | `{"cloud":true}` | `{"self_hosted":true}` |
| description.long | A testing platform combining an open-source desktop application with a cloud service for managing test execution, scaling tests across CI environments, and providing real-time insights into test results and application quality. | A testing framework powered by Vite, offering Jest-compatible features including snapshots, code coverage, and mocking capabilities. It provides native TypeScript and JSX support, browser-based testing, watch mode, and benchmarking. |
| features.capabilities | `{"coverage":true,"languages":"JavaScript/TypeScript","assertions":true,"open_source":true,"ci_integration":true,"cloud_grid_hosted":true,"browser_automation":true,"parallel_execution":true,"ai_self_healing_locators":true,"ci_cd_integration_breadth":"extensive"}` | `{"mocking":true,"coverage":true,"languages":"TypeScript, JSX","assertions":true,"watch_mode":true,"snapshot_testing":true,"browser_automation":true,"parallel_execution":true}` |
| integrations.count | 4 | 2 |
| integrations.list | `[{"name":"Jira"},{"name":"GitHub Enterprise"},{"name":"GitLab Enterprise"},{"name":"GitHub","native":true,"category":"source_control"},{"name":"GitLab","native":true,"category":"source_control"},{"name":"Okta","native":true,"category":"identity_management"},{"name":"Azure AD","native":true,"category":"identity_management"},{"name":"Slack","native":true,"category":"chat","direction":"bidirectional"},{"name":"Microsoft Teams","native":true,"category":"chat","direction":"bidirectional"}]` | `[{"name":"Vite"},{"name":"Jest"}]` |
| language.primary | TypeScript | TypeScript |
| license.spdx | MIT | MIT |
| market.availability | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"source":"https://vitest.dev","hqCountry":"US","confidence":0.9,"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":true,"name":"Free","summary":"Free for open-source projects","features":["Basic test execution and storage"],"description":"For non-commercial open-source, public projects","contactSales":false},{"free":false,"name":"Starter","summary":"$799/year","commitment":"annual","components":[{"kind":"fixed","amount":799,"period":"year","currency":"USD"}],"contactSales":false},{"free":false,"name":"Business","summary":"$3,199/year","commitment":"annual","components":[{"kind":"fixed","amount":3199,"period":"year","currency":"USD"}],"contactSales":false},{"free":false,"name":"Enterprise","summary":"Custom pricing; 30-day free trial available","features":["Unlock all features"],"description":"Custom pricing and features for large teams","contactSales":true}],"summary":"Free tier for open-source projects; paid plans from $799/year billed annually","currency":"USD","freeTier":true,"sourceUrl":"https://www.cypress.io/pricing","retrievedAt":"2026-10-15T09:20:57.987Z","freeTrialDays":30,"startingPrice":{"amount":799,"period":"year","currency":"USD"},"billingPeriods":["month","year"]}` | `{"type":"open_source","sourceUrl":"https://vitest.dev","retrievedAt":"2026-10-13T15:11:09.272Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | open_source |
| pricing.price_level | high | free |
| pricing.starting_price | `{"amount":799,"currency":"USD"}` | - |
| pricing.transparent | yes | yes |
| release.cadence_days | 13 | 5 |
| release.history | `[{"url":"https://github.com/cypress-io/cypress/releases/tag/v16.2.0","date":"2026-10-14T16:27:58Z","type":"stable","version":"v16.2.0"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v16.1.1","date":"2026-09-29T18:23:34Z","type":"stable","version":"v16.1.1"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v16.1.0","date":"2026-09-15T21:37:56Z","type":"stable","version":"v16.1.0"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v16.0.0","date":"2026-09-01T17:27:02Z","type":"stable","version":"v16.0.0"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v15.21.1","date":"2026-08-25T16:56:17Z","type":"stable","version":"v15.21.1"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v15.21.0","date":"2026-08-18T19:47:37Z","type":"stable","version":"v15.21.0"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v15.20.1","date":"2026-08-10T17:56:37Z","type":"stable","version":"v15.20.1"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v15.20.0","date":"2026-08-04T21:53:30Z","type":"stable","version":"v15.20.0"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v15.19.0","date":"2026-07-21T17:46:33Z","type":"stable","version":"v15.19.0"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v15.18.1","date":"2026-07-07T17:57:17Z","type":"stable","version":"v15.18.1"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v15.18.0","date":"2026-06-23T17:51:38Z","type":"stable","version":"v15.18.0"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v15.17.0","date":"2026-06-09T16:32:50Z","type":"stable","version":"v15.17.0"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v15.16.0","date":"2026-05-26T21:57:32Z","type":"stable","version":"v15.16.0"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v15.15.0","date":"2026-05-12T18:02:05Z","type":"stable","version":"v15.15.0"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v15.14.2","date":"2026-04-29T18:39:32Z","type":"stable","version":"v15.14.2"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v15.14.1","date":"2026-04-21T17:22:37Z","type":"stable","version":"v15.14.1"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v15.14.0","date":"2026-04-16T18:45:31Z","type":"stable","version":"v15.14.0"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v15.13.1","date":"2026-04-07T19:41:05Z","type":"stable","version":"v15.13.1"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v15.13.0","date":"2026-03-24T18:20:32Z","type":"stable","version":"v15.13.0"},{"url":"https://github.com/cypress-io/cypress/releases/tag/v15.12.0","date":"2026-03-13T17:54:12Z","type":"stable","version":"v15.12.0"}]` | `[{"url":"https://github.com/vitest-dev/vitest/releases/tag/v5.0.4","date":"2026-10-12T09:37:37Z","type":"stable","version":"v5.0.4"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v5.0.3","date":"2026-09-30T11:25:52Z","type":"stable","version":"v5.0.3"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v5.0.2","date":"2026-09-25T08:58:17Z","type":"stable","version":"v5.0.2"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v5.0.1","date":"2026-09-15T08:43:24Z","type":"stable","version":"v5.0.1"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v5.0.0","date":"2026-09-03T12:19:51Z","type":"stable","version":"v5.0.0"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v5.0.0-rc.4","date":"2026-08-31T11:08:10Z","type":"prerelease","version":"v5.0.0-rc.4"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v5.0.0-rc.3","date":"2026-08-28T16:51:43Z","type":"prerelease","version":"v5.0.0-rc.3"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v4.1.11","date":"2026-08-18T14:21:05Z","type":"stable","version":"v4.1.11"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v5.0.0-rc.2","date":"2026-08-17T13:23:20Z","type":"prerelease","version":"v5.0.0-rc.2"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v5.0.0-rc.1","date":"2026-08-11T23:41:46Z","type":"prerelease","version":"v5.0.0-rc.1"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v5.0.0-beta.7","date":"2026-07-24T11:40:54Z","type":"prerelease","version":"v5.0.0-beta.7"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v5.0.0-beta.6","date":"2026-07-06T06:52:52Z","type":"prerelease","version":"v5.0.0-beta.6"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v4.1.10","date":"2026-07-06T06:41:38Z","type":"stable","version":"v4.1.10"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v3.2.7","date":"2026-07-06T06:35:34Z","type":"stable","version":"v3.2.7"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v5.0.0-beta.5","date":"2026-06-15T08:49:24Z","type":"prerelease","version":"v5.0.0-beta.5"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v4.1.9","date":"2026-06-16T06:13:58Z","type":"stable","version":"v4.1.9"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v5.0.0-beta.4","date":"2026-06-01T08:40:54Z","type":"prerelease","version":"v5.0.0-beta.4"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v4.1.8","date":"2026-06-01T08:15:20Z","type":"stable","version":"v4.1.8"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v3.2.6","date":"2026-06-01T09:39:20Z","type":"stable","version":"v3.2.6"},{"url":"https://github.com/vitest-dev/vitest/releases/tag/v3.2.5","date":"2026-06-01T08:35:18Z","type":"stable","version":"v3.2.5"}]` |
| reliability.status_page | yes | - |
| security.disclosure_policy | yes | - |
| security.gdpr | yes | - |
| security.iso27001 | yes | - |
| security.scorecard | 5.1 | - |
| security.trust_center | https://www.cypress.io/security | - |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=cypress&per_page=100","last_12m":0,"max_severity":null}` | `{"count":3,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=vitest&per_page=100","last_12m":2,"max_severity":"CRITICAL"}` |

## Capabilities (Testing Tools)

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

*Source: vioscaleAI. Generated 2026-10-16T23:26:02.984Z. "-" = undocumented, not absent.*