800x600 is a free Chrome add-on developed by bliof that aims to help users monitor the dimensions of images displayed on web pages. This add-on replaces the original images with ones that show their dimensions, allowing users to easily identify images that do not meet their desired size requirements.

One of the key features of 800x600 is its ability to replace all images from img tags, even dynamically added ones. This ensures that users have a comprehensive view of all the images on a web page. Additionally, the replacement images are rendered locally, providing a seamless browsing experience.

Another notable feature of 800x600 is that it works on a per-tab basis. This means that users can monitor the dimensions of images on each individual tab, allowing for better organization and analysis. Furthermore, the add-on replaces images when they are loaded, so if the server returns a 404 error, the image won't be replaced, allowing users to easily identify any potential issues.

With its user-friendly interface and powerful image replacement capabilities, 800x600 is a useful tool for anyone who needs to closely monitor the dimensions of images on web pages.