ByteCost is a Chrome add-on designed for website cost analysis and performance evaluation. It provides users with crucial insights into how heavy a webpage is during the loading process. The tool assesses the current page and delivers essential data such as estimated payload size, total request count, and the impact of third-party resources. Additionally, it highlights large files and offers a straightforward performance score, all presented in a user-friendly overlay.

This tool is particularly valuable for web developers and digital marketers who need to identify expensive pages and optimize asset usage before launching a website. By utilizing ByteCost, users can efficiently pinpoint bloated assets and uncover opportunities for improvement, ensuring a smoother and more cost-effective web experience.