errx is a tiny, modern JavaScript library for creating and working with application errors. It provides a streamlined way to define error hierarchies and add custom properties to error objects. errx promotes structured error handling by making it easy to create specific error types and attach relevant context, significantly improving debugging and error reporting. It's designed for both Node.js and browser environments.
The npm package errx had three releases in July 2024 (versions 0.0.0, 0.0.1, and 0.1.0). Since August 2024, including all months of 2025 up to and including July, there have been no new releases of the package.
Errx downloads started slowly, then experienced rapid growth from July 2024 onwards. Downloads peaked in July 2025 at nearly 3 million. August 2025 shows slightly lower numbers but the month is not complete yet, so we are currently experiencing consistent high download volume.
