Sealights is a free browser add-on designed for Chrome that provides users with insights into code coverage within Git repositories. It allows developers to view coverage data and other relevant metadata collected from various platforms, including GitHub, Bitbucket, and GitLab. This functionality is crucial for teams looking to enhance their testing processes and ensure higher code quality.

One of the standout features of Sealights is its ability to gather coverage data from manual tests conducted directly in the browser. This enables developers to understand which parts of their code have been tested and which areas may require further attention. By integrating code coverage visualization into the development workflow, Sealights supports more informed decision-making and efficient test management.