Performance Monitor is a free Chrome extension developed by performancemonitorextension. Created as a practice project for working with Chrome extensions and its API, this tool provides developers with valuable insights into system and tab-specific metrics.

With Performance Monitor, developers can easily monitor various metrics including CPU model, number of threads, memory capacity, screen resolution, CPU usage, CSS cache, image cache, JavaScript memory, network usage, script cache, and SQLite memory. This extension offers a convenient way to keep track of these important details without having to access Chrome developer tools.

Whether you're a seasoned developer or just starting out, Performance Monitor can be a helpful companion during development. It allows you to quickly monitor and analyze system and tab information, providing valuable insights for optimizing performance and identifying any potential issues.

Overall, Performance Monitor is a useful Chrome extension that provides developers with a simple and accessible way to gather important system and tab-specific metrics. With its user-friendly interface and comprehensive range of monitoring capabilities, it serves as a valuable tool for enhancing development workflows and ensuring optimal performance.