子仓库提交对比 is a free Chrome extension developed by yanggwcn. It falls under the category of Browsers and is specifically classified as an Add-ons & Tools. This extension allows users to compare different commits of sub-repositories. Users can choose to compare commits by right-clicking and selecting the desired options or manually inputting the commit IDs. By clicking on the extension's popup, users can enter two commit IDs and navigate to the comparison page. Alternatively, users can select commit information and use the right-click option provided by this extension to navigate. Additionally, on the MR (Merge Request) page, a button is automatically generated for easy navigation.