5 Free AI Tools to Understand Code and Generate Documentation
Discover five AI tools that make exploring and understanding large codebases faster and easier.
# Introduction
We all know that understanding a new codebase is just plain hard. You're opening file after file, reading through comments that don't make much sense, and trying to figure out how different parts connect. It doesn't matter if you're in research or working at a company; it's the same struggle. But AI tools are making this way easier. They can map out how the code works, give you quick summaries, and answer questions like a coworker would. It's much faster than doing everything by hand. Let’s look at five such tools that really help.
# 1. Google Code Wiki
Google Code Wiki is an AI-based documentation tool. It scans a repository after every commit and creates structured documentation. It can add diagrams and link different parts of the code together. There is also a chat interface powered by Google’s Gemini AI. You can ask questions about the code in natural language. Code Wiki is currently in public preview and is free for public repositories. Private repositories are supported through a waitlist with a CLI tool.
