Architecture
Automatically analyze and visualize the architecture of any codebase. See classes, modules, interfaces, and their connections at a glance.
Map the system, master the code
Heimdall is a code visualization tool that generates interactive dependency maps from any codebase. The best way to understand complex software systems without reading code file by file.
Offline, private, built for developers and software engineers.
AI writes the code. Do you still understand the system?
In the AI-native software development era, code is generated faster than ever. Copilots, agents, and LLMs produce thousands of lines per day. But speed without visibility creates fragile systems that nobody fully understands.
The more code AI writes for you, the farther you drift from the architecture. Dependencies multiply silently. Modules grow without direction. Teams ship features without knowing what they might break. The gap between what the system does and what developers understand about it has never been wider.
Heimdall closes that gap. Built for developers and software engineers, it turns any codebase into an interactive system map, giving you structural awareness that keeps pace with AI-generated code. You stay in control of the architecture, no matter how fast the code grows.
CLI for AI agents
Heimdall includes a powerful command-line interface designed for LLM agent integration. Run headless analysis on any file or directory and get structured JSON output that AI models can consume directly — no GUI required. This is the best way to integrate Heimdall into automated workflows, CI pipelines, and AI-powered development tools.
Example --headless
# Analyze a project and get the full dependency graph as JSON
heimdall --headless ./src | jq '.graph.nodes[] | select(.artifact_type == "Class") | .artifact_name'
# Export the analysis to a file for LLM consumption
heimdall --headless ./src --export /tmp/analysis
# Get the JSON schema for tool integration
heimdall --export-schemaHow Heimdall works
From codebase to interactive system map in seconds. No configuration, no cloud, no complexity.
Open your project
Point Heimdall at any local codebase. It works with any folder structure, any repository size, and any of the 16 supported languages. No configuration files, no project setup, no cloud account required. Just select a directory and Heimdall handles the rest.
Automatic analysis
Heimdall's parser performs static analysis on your source files, extracting class hierarchies, function call graphs, module boundaries, and dependency relationships. The analysis runs entirely on your machine with zero network requests, processing even large monorepos with hundreds of thousands of files in seconds.
Interactive map
Your codebase becomes a navigable graph where each node represents a code entity and each edge represents a dependency. See how components connect, identify tightly coupled clusters, spot architectural boundaries, and understand the overall system structure at a glance without reading a single line of code.
Deep exploration
Expand nodes to reveal internal structure, trace dependency paths across module boundaries, find all usages of any symbol, and discover hidden connections. Navigate your system spatially with progressive disclosure, focusing on the areas that matter while keeping the full architecture context available.
Supports the languages and frameworks you use
Heimdall analyzes codebases written in 16 languages and frameworks, with full architecture extraction for each. It processes projects with over 100,000 files and renders dependency graphs with thousands of nodes in real time.
Rust
Java
Python
Kotlin
TypeScript
Swift
C#
JavaScript
Go
C
C++
PHP
Ruby
Scala
React
Jetpack ComposeYour code stays yours
We respect your privacy and intellectual property. Heimdall runs entirely on your machine. Your code is never sent to any AI service or shared with any third-party company. All analysis happens locally, offline, and under your full control.
Understanding code shouldn't be the hardest part of building software
Engineers spend the majority of their time reading and understanding existing code rather than writing new code. As systems grow, architecture becomes invisible, dependencies become tangled, and onboarding new team members takes weeks instead of days.
Without Heimdall
- Read code file by file with no system-wide context
- Manually trace dependencies across modules and packages
- Onboard new developers over weeks of shadowing
- Make architectural decisions without seeing the full picture
With Heimdall
- See the entire system architecture as an interactive map
- Trace any dependency chain in seconds
- Onboard new developers in hours with visual context
- Make informed decisions with complete structural visibility
Built for developers
Heimdall is a desktop application that generates interactive system maps from your codebase. It reveals the hidden architecture beneath your code, making complex systems navigable and comprehensible.
Dependencies
Trace dependencies across your entire codebase. Understand how components connect, what depends on what, and where coupling exists.
Code Exploration
Navigate your code spatially. Expand nodes, trace paths, and find usages through an intuitive graph interface designed for deep exploration.
Onboarding
New team members understand systems in hours, not weeks. Interactive maps provide immediate context about how code is organized and connected.
Reduced Complexity
Cut through layers of abstraction. Heimdall reveals the true structure of your system, helping you make informed architectural decisions with clarity.
Find Anything
Search files, find usages, and locate nodes on the map instantly. Powerful search capabilities across your entire codebase at your fingertips.
Best tool for understanding complex codebases
Heimdall is used by software engineers, tech leads, and engineering teams for architecture visualization and code exploration workflows.
Codebase Understanding
Best tool for exploring unfamiliar codebases. Navigate the entire system architecture visually instead of reading files one by one. Understand how components connect in minutes.
Developer Onboarding
Best tool for onboarding new engineers to large projects. Interactive system maps give immediate context about codebase structure, reducing onboarding time from weeks to hours.
Refactoring Planning
Best tool for planning safe refactoring. Visualize all dependencies before making changes. See what depends on what and identify the safest paths for restructuring code.
Architecture Review
Best tool for reviewing software architecture. Audit coupling between modules, identify architectural drift, and ensure design decisions are reflected in the actual code structure.
AI-Generated Code Oversight
Best tool for maintaining architectural awareness when using AI coding assistants. See how AI-generated code fits into the broader system and catch unintended coupling early.
Technical Documentation
Best tool for documenting system structure visually. Generate accurate architecture maps directly from source code instead of maintaining outdated manual diagrams.
Who uses Heimdall?
- Software Engineers who need to understand large codebases quickly
- Tech Leads who review architecture and plan refactoring
- Engineering Managers who onboard new team members
- Solo Developers maintaining complex projects over time
- Open Source Contributors exploring unfamiliar repositories
Simple, transparent pricing
Choose the plan that works for you. All plans include full access to Heimdall and every update.
Community
Unemployed & Students
- Full Heimdall access
- All updates included
- Analyse 16 languages and frameworks
- Blazing fast experience
- Free trial included
* Applications reviewed manually
Request Free LicenseLaunch 20% OFF
Monthly
4.99€
3.99 € / month
- Full Heimdall access
- All updates included
- Analyse 16 languages and frameworks
- Blazing fast experience
- Free trial included
Launch 20% OFF
Patron
9.99€
7.99 € / month
- Full Heimdall access
- All updates included
- Analyse 16 languages and frameworks
- Blazing fast experience
- Free trial included
* Same as Monthly. Your subscription directly supports the solo developer building Heimdall.
Become a PatronLaunch Offer
Annual
52.99€
42.39 € / year
- Full Heimdall access
- All updates included
- Analyse 16 languages and frameworks
- Blazing fast experience
- Free trial included
* The current pricing is associated with the product launch and may change in the future.
Download Heimdall
Available for macOS, Windows, and Linux.