developit/karmatic

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1159 stars · 42 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Karmatic is a zero-configuration test runner that runs browser tests in headless Chrome using Karma, Webpack (or Rollup), and Jasmine, while exposing Jest's API and expect syntax. It auto-detects existing Webpack or Rollup configs and provides run, watch, and debug commands via a single CLI dependency.

Use cases

• run browser tests headlessly with jest-like api
• zero config test runner for javascript modules
• test small npm libraries in chrome headless
• watch mode browser testing during development
• debug browser tests in a headful chrome instance
• get code coverage for browser-based unit tests

When to choose

• you want Jest-style testing but in a real browser
• you maintain small modules and don't want to configure Karma/Webpack manually
• you need headless Chrome testing with minimal setup

When to avoid

• you need multi-browser testing beyond Chrome
• you prefer modern alternatives like Playwright or Vitest browser mode
• you need actively developed tooling with recent updates

Facets

cli-tool · maturity maintenance

testing e2e-testing cli build-tool testing web-development frontend developer-tools cli cross-platform karma webpack jasmine puppeteer headless-browser jest-api zero-config test-runner command-line nodejs

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