# CodeLayers > Full documentation: https://codelayers.ai/llms-full.txt > CodeLayers is a spatial code explorer that visualizes codebases in 3D on iPhone, iPad, and Apple Vision Pro. It helps developers understand architecture, navigate dependencies, and assess the impact of code changes — all with zero-knowledge encryption that ensures source code never leaves the device unencrypted. It supports TypeScript, JavaScript, Python, Rust, Go, Java, C++, C#, Ruby, PHP, and Swift. CodeLayers parses your codebase with tree-sitter, builds a dependency graph, and renders it as a 3D spatial scene. Files become nodes, imports become connections. You can walk through your architecture on Vision Pro, pinch-zoom on iPad, or swipe through layers on iPhone. Key concepts: - **Topological depth**: Every file has a depth level. Foundation files (depth 0) are imported by others but import nothing. Higher layers build on lower layers, forming a natural pyramid shape. - **Blast radius**: Select a file and see which other files are affected if it changes, color-coded by distance from the change. - **Zero-knowledge encryption**: Code is encrypted client-side with AES-256-GCM before syncing. The server never sees plaintext source code. - **Overlays**: Save AI-generated highlights as persistent layers you can toggle on anytime to build a visual map of your codebase. Platforms: iPhone (iOS 18+), iPad (iPadOS 18+), Apple Vision Pro (visionOS 2+). The CLI runs on macOS with Apple Silicon. Languages supported: TypeScript, JavaScript, Python, Rust, Go, Java, C++, C#, Ruby, PHP, Swift. AI integrations: Claude Code, Gemini CLI, and Codex CLI connect via MCP (Model Context Protocol) with 14 tools — graph-enriched symbol search, file skeleton (up to 90% fewer tokens than reading), call chain tracing, type flow analysis, variable tracing, 3D visualization control, and cross-session memory. ## Docs - [Getting Started](https://codelayers.ai/docs/getting-started): Get up and running with CodeLayers in about 5 minutes. Install the CLI, pair with the app, and sync your first repo. - [CLI Reference](https://codelayers.ai/docs/cli): Complete reference for the CodeLayers command-line tool, including sync, explore, and configuration commands. - [App Guide](https://codelayers.ai/docs/app): Complete guide to using the CodeLayers app on iPhone, iPad, and Apple Vision Pro. - [AI Agents](https://codelayers.ai/docs/ai-agents): Tips and tricks for using AI agents (Claude Code, Gemini CLI, Codex CLI) with CodeLayers via MCP. - [Concepts](https://codelayers.ai/docs/concepts): Understand topological depth, blast radius, and zero-knowledge privacy. - [GitHub Action](https://codelayers.ai/docs/github-action): Automatically generate 3D code visualizations for every pull request in your CI/CD pipeline. - [VS Code Extension](https://codelayers.ai/docs/vscode): Free blast radius analysis directly in VS Code — color-coded file decorations, CodeLens annotations, and a sidebar showing affected files by hop distance. No account required. - [Web Sharing](https://codelayers.ai/docs/sharing): Share interactive 3D code visualizations with anyone — zero-knowledge encrypted. - [Pricing](https://codelayers.ai/docs/pricing): CodeLayers pricing plans — Free and Pro tiers. - [Troubleshooting](https://codelayers.ai/docs/troubleshooting): Common issues and how to resolve them. ## Blog - [Hello, World](https://codelayers.ai/blog/hello-world): Why we started CodeLayers, what we're creating, and why spatial computing changes everything for developers. - [The Hidden Hierarchy in Your Codebase](https://codelayers.ai/blog/the-hidden-hierarchy-in-your-codebase): Every codebase has a shape you've never seen. Topological depth reveals which files are foundations and which are leaves. - [Getting Started with CodeLayers](https://codelayers.ai/blog/getting-started): Visualize your codebase in 3D with private repo sync, AI agents with 14 MCP tools, blast radius analysis, and zero-knowledge encryption. - [Introducing Overlays](https://codelayers.ai/blog/introducing-overlays): Save AI highlights as persistent layers you can toggle on anytime. Build a visual map of your codebase that sticks around. - [Now on iPhone and iPad](https://codelayers.ai/blog/now-on-iphone-and-ipad): The same 3D code visualization experience comes to your pocket and your desk. ## Optional - [Privacy Policy](https://codelayers.ai/privacy): How CodeLayers handles your data, including zero-knowledge encryption details. - [Terms of Service](https://codelayers.ai/terms): Terms governing use of CodeLayers. - [End User License Agreement](https://codelayers.ai/eula): EULA for the CodeLayers app. - [About](https://codelayers.ai/about): About the CodeLayers team.