babel-plugin-istanbul instruments your JavaScript code with Istanbul.js code coverage reporters during the Babel compilation process. This allows you to effortlessly measure test coverage without modifying source code. It seamlessly integrates with popular testing frameworks and CI/CD pipelines. Configure thresholds to prevent regressions and generate comprehensive reports in various formats (HTML, LCOV, text, etc.) to gain granular insights into your project's testing effectiveness. Use alongside tools like Jest and Mocha.
The babel-plugin-istanbul package saw frequent releases in 2016-2019, with occasional updates afterward. Releases were most active in the first year, peaking in July 2016 with 3 versions. Release frequency decreased significantly after 2019, with only a few releases in 2021 and 2024. There have been no releases in 2025 as of September 8th.
Babel-plugin-istanbul downloads show strong performance. From March 2024 to August 2025 downloads remained consistently high. The package experienced a notable increase in downloads starting in May 2025, peaking in July 2025. September 2025 currently shows lower downloads, but the month is not yet complete.
