ExplainDev is a free browser extension that provides code explanations and visualizations from code blocks found on the web. The web browser extension can easily be downloaded and installed on any web browser that supports Google Chrome. 

Once it's installed, users will be able to click on any code block on websites they visit, and they will be able to see the code explanation in full-screen mode. This is an extremely simple user experience, but that's all it takes to make things a lot easier to understand. The software is still in beta, so it can crash sometimes. But we are always working to make it better.