* [WebPerf Snippets v1.2.0](https://github.com/nucliweb/webperf-snippets) – Curated collection of JavaScript snippets to measure and debug web performance from the browser DevTools console.

* [phantomas v2.23.0](https://github.com/macbre/phantomas) – Headless Chromium-based web performance metrics collector and monitoring tool.

* [analyze-css v2.4.33](https://github.com/macbre/analyze-css) – CSS selectors complexity and performance analyzer providing detailed metrics and offender reports.