Test Coverage Badge Generator

Coverage badges are small SVG images you embed in your README to show the percentage of code covered by tests. They give contributors and users an at-a-glance quality signal. A badge showing 95% coverage signals a well-tested project; one showing 20% may deter contributors.

Run your test suite with coverage enabled: Jest uses --coverage flag, Vitest uses --coverage, Go uses go test -cover, and Python uses pytest-cov. After running, you'll see a summary with the overall percentage. Use that number in this generator.

Green (≥90%) indicates excellent coverage. Yellow-green (75-89%) indicates good coverage. Yellow (60-74%) indicates moderate coverage. Orange (40-59%) indicates low coverage. Red (<40%) indicates very low coverage. These thresholds follow common open-source conventions but can be customized to your project standards.

Copy the Markdown snippet from this generator and paste it at the top of your README.md, typically next to other badges like build status. The badge links to your coverage report or test workflow, so viewers can click for details.

Static badges (generated here) are simple and always visible but need manual updates. Dynamic badges from shields.io or Codecov update automatically from your CI pipeline. For active projects, integrate Codecov or Coveralls with GitHub Actions to auto-update badges on every push.