Mocha gives developers a straightforward framework for organizing JavaScript tests across different runtimes and libraries.
Reliability breakdown
Component scores measured daily from GitHub activity (2026-07-19).
Activity on 65 of 90 tracked days in the last 90 and 19 of 30 in the last 30.
Merged 120 of 183 PRs opened and closed 46 of 52 issues opened over the last 90 tracked days — PR flow carries 55% of this component, issue flow 45%.
17 releases in the last 180 days, 11 in the last 90 and 0 in the last 30 — a steady cadence scores highest.
Last push 1 days ago — freshness decays as pushes age (roughly halves every 83 days without a push).
193 open issues against 22,902 stars — about 8 open issues per 1,000 stars. Lighter backlogs score higher.
Modeled — lower is better; concentration of commits in few maintainers. Contributors graph
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Mocha is a JavaScript testing framework known for its flexible structure and broad ecosystem compatibility. It supports running tests in Node.js and browser contexts, which makes it useful for a range of project types. Teams often choose Mocha when they want a lightweight test runner that can be combined with their preferred assertion and mocking libraries.
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