The istanbul-instrumenter-loader is a Webpack loader that integrates Istanbul code coverage instrumentation directly into your build process. It allows you to automatically instrument your JavaScript and TypeScript code during bundling. This instrumentation enables you to generate detailed code coverage reports, crucial for testing and ensuring code quality. Seamlessly integrates with popular testing frameworks, providing granular insights into which parts of your code are being executed. This ultimately streamlines your development workflow.
The npm package istanbul-instrumenter-loader had sporadic releases. Initial activity was in 2014 (3 in September) and 2015. Releases continued intermittently until March 2018 (version 3.0.1), then stopped. There have been no releases since March 2018, and no releases in 2025 so far.
Istanbul-instrumenter-loader downloads show fluctuating popularity. Initially lower in early 2024, downloads generally trended upward, peaking in June 2025 at over 1.2 million. July 2025 saw a slight decrease, and August 2025, only partially complete, shows significantly lower downloads.
