https://chrome.google.com/webstore/detail/github-repository-size/apnjnioapinblneaedefcnopcjepgkci https://chrome.google.com/webstore/detail/github-repository-..

https://chrome.google.com/webstore/detail/github-repository-size/apnjnioapinblneaedefcnopcjepgkci https://chrome.google.com/webstore/detail/github-repository-... I think this Chrome extension called "GitHub Repository Size" might be exactly what you are looking for