codecity: a 3D map of your codebase

codecity: a 3D map of your codebase is an interactive tool that draws a codebase as a 3D map with one building per file to show changes and dependencies.

Codecity renders a repository as a 3D city where each file appears as a building and folders appear as raised plots. It reads your git history and working tree locally to display what changed, file lengths, file ages, churn, and import dependencies. Users can click buildings to inspect details, play a timeline from the first commit to the present, and record video playback. It supports TypeScript, JavaScript, Python, Rust, Java, Kotlin, and C or C++. The tool runs entirely on your local machine without sending data elsewhere, requiring git and Node 20 or later.

codecity: a 3D map of your codebase at a glance

Best for: Software engineer
Runs on: Web, CLI, self-hosted, open source
Pricing: Free and open source
Released: October 2026
Category: AI coding tool
Website: codecity.icy.dev

Key features

3D map representation of codebases
Timeline playback of commit history
Dependency and import visualization
File length and height scaling
Color coding for recent changes and file age
Video recording of timeline playback
Local execution with no network requests

Use it for

Visualising recent changes after a git pull
Tracking where coding agents are working
Exploring file dependencies and imports
Reviewing project evolution from the first commit

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