ExplainDev
Browser extension that explains code snippets in plain English directly on GitHub, Stack Overflow, and documentation pages as you browse.
About
ExplainDev is a Chrome and VS Code extension that reads code on whatever page you are visiting and explains it in plain language without leaving the browser. Highlight a snippet on GitHub, a Stack Overflow answer, a config file, or a documentation example and get an immediate AI-generated explanation alongside suggestions for what to learn next. It was aimed at developers learning a new codebase or language who want context without switching tabs. The tool launched around 2021 and offered a free account tier. Note that as of 2024 the website became inaccessible and the project appears to have been quietly discontinued; listings remain in directories but the service may no longer be active.