CodeViz (YC S24)

What it does

CodeViz builds a visual map of your codebase that makes it easy to understand and navigate. Developers spend 70% of their day reading code to gather context - our VS Code extension fixes that! Get on-demand diagrams, from system architecture to function calls.

Understand your codebase at a glance with intelligent code visualization

By speeding up PR review, visualizing tickets, and aligning on architecture. Built for living architecture. CodeViz keeps your documentation in sync. CodeViz analyzes large codebases across all major languages to build a complete architecture model, with stakeholder-ready views. Every element is fully editable and links back to the source code. Ask for a workflow, API path, or data flow. CodeViz generates an end-to-end view that shows dependencies, data movement, and where each step lives in the codebase. One architecture model shared across the team. Branch it for proposed designs, publish tailored views, and store versions in Git so updates are reviewable and traceable. Modeled on…from codeviz.ai

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  CodeViz – A diagram editor that understands your code (YC S24)Dec 2025 · ▲5

  Hey HN, we’re Will and Liam, founders of CodeViz (YC S24). We’re building a VS Code extension that reads your code and generates editable architecture diagrams (C4, UML). It’s mostly used by teams to build shared context, agree on technical decisions, and visualize PRs. Here’s a recorded demo: https://youtu.be/Jh3wkrCj_WQ You can try the VS Code extension here: https://marketplace.visualstudio.com/items?itemName=CodeViz.... It’s free for 10 generations/month (no signup). Then, we have a $19/month plan for unlimited diagram generation and $50/month…

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