CodeViz (YC S24)

👋 Hey Product Hunt community! I'm Liam, co-founder of CodeViz along with Will. We're thrilled to officially launch our VS Code extension that transforms how developers understand and navigate code. CodeViz turns source code into interactive visual maps, from high-level architecture down to function calls. We built this tool because, like many developers, we were frustrated spending 70% of our time just reading and understanding existing code instead of building software. Our core belief is that code should be as easy to understand visually - as it is during whiteboard sessions. That's why we've created an extension that generates real-time, navigable diagrams right in your IDE. Who's CodeViz for? - Engineers navigating complex, unfamiliar codebases - Teams onboarding new developers - Open-source contributors trying to understand project structure - Anyone who's ever been lost in a sea of spaghetti code! Here's what you can do with CodeViz: 🔍 Interactive Call Graphs: Click on any function to see a chain of upstream and downstream references. Navigate your codebase using the call stack and see, in one view, everywhere your functions are called. 🏗️ AI-Powered Architecture Diagrams: Get an instant C4 diagram of your system architecture. We detect important files and use LLMs to build nested diagrams at the container and component level. 🔄 On-Demand Diagrams: Want to understand how a specific file works, how data flows through the stack, or something else? Just ask our System Flow Visualizer. We're already seeing adoption from engineers at companies like Amazon, Roblox, and Microsoft. Whether you're a part-time hacker or part of a Fortune 500 dev team, CodeViz scales to any project size. CodeViz is available now in the VS Code Marketplace. We offer basic features for free, with a paid tier for more resource-intensive tools like detailed architecture diagrams. We'd love for you to try CodeViz and let us know what you think! We're eager to hear your feedback and suggestions to make CodeViz even better. Thanks for your support, and happy coding!

CodeViz sounds like a game-changer for developers, especially when it comes to navigating complex codebases and onboarding new team members! The interactive call graphs and AI-powered architecture diagrams seem like they’ll save a ton of time that would otherwise be spent deciphering code. I love that it brings the clarity of whiteboard sessions directly into the IDE, making it much easier to understand both high-level structure and individual function calls. Has anyone tried it out on a particularly complex project yet? I’d love to hear how it helped streamline your workflow!

Liking the idea of visual maps for navigating codebases—makes the whole process so much easier👍. Congrats to the team!