TrustOSS

TrustOSS is a free web tool designed to help developers and teams thoroughly evaluate open-source GitHub repositories. It goes beyond simple star counts to provide a comprehensive health score, auditing various aspects like activity, maintenance, community, documentation, and maturity. This helps you make informed decisions about which libraries to integrate into your projects, reducing the risk of relying on unmaintained or problematic dependencies.

The tool works by letting you search for repositories by keywords or paste a GitHub URL. It then generates a detailed report, including an overall score and breakdowns across five dimensions. You can also run a "deep scan" for vulnerabilities, bus factor, and real adoption, and a "fake-star audit" to identify artificially inflated popularity. A standout feature is the side-by-side comparison, allowing you to evaluate up to four candidate libraries simultaneously with a radar chart and score table.

TrustOSS is particularly useful for developers, project managers, and anyone involved in selecting open-source dependencies. It helps mitigate supply chain risks by providing objective data on a project's health and authenticity. Whether you're a solo developer picking a new library or a team lead vetting critical components, TrustOSS offers a clear, data-driven way to assess open-source projects before they become part of your codebase.