Document and explain your code easily

With AppMap, let your code auto-document itself as you work. Record an interactive map of any piece of code and share it with other developers anywhere in your workflow to clearly communicate your code’s behavior, logic and design.

Free and open-source interactive code analysis platform

Document any piece of code, anywhere in your workflow

AppMap helps you explain any piece of code in a clear, visual way — whether you’re presenting a feature to your team, pointing out an issue, onboarding a teammate to a new task or documenting your software. Simply record an interactive map of the code and share it with other developers with the link or attach it to a ticket in Jira or GitHub.

Learn how to add an interactive diagram to an issue.
Let your software document itself

Inaccurate documentation is useless and misleading, but keeping documentation up-to-date isn’t easy. Instead of describing software logic in thousands of words and manually updating your docs every time a change is made, attach AppMaps to your docs. AppMap automatically documents end-to-end code and data flows, web services catalogs, and your app’s database schema.

Learn how to visualize your software architecture in 2.5 mins.
Onboard newcomers to new code faster

Record AppMaps to help new-to-the-code developers onboard themselves quickly. AppMaps are interactive and easy to search so onboarding developers can explore actual software behavior and design linked to the source code right in their code editors. Now you can spend less time explaining your project’s architecture or issue logic.

Learn how to learn how new-to-you code works with AppMaps.
Communicate the bigger picture and code logic

To determine where and how to make code changes, onboarding developers need to see the bigger picture and understand the decisions behind the code. AppMaps provide a big picture view of all code components and interdependencies and show how the entire application stack works when the code runs.

Automatically generated AppMaps of your software include:

  • Dependency maps
  • Execution trace diagrams
  • List of web services and SQL queries
  • Search and filter code, web services, and SQL
  • Links to source code
Learn more about AppMap

Ace your code review with AppMap

2.5 minutes from the installation to the first AppMaps in your code editor. Learn how to record and add interactive diagrams to a pull request with AppMap with a step-by-step guide. »

Install and configure the AppMap agent for your language
AppMap agent records executing code as JSON files
The AppMap extension for your code editor displays AppMap data as interactive diagrams

What developers say about AppMap

Visual Studio Code Marketplace review
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"Visuals are gold! Especially for someone who is newer to programming. This tool helped me understand the apps I've been building on a deeper level."

— Jake, Ruby developer

Visual Studio Code Marketplace review
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"Just by using the extension once, I identified two unnecessary dependencies in my app. Though the application is a minimal one, I think AppMap will be handy when developing a big application."

— Hesbon, Python developer

Visual Studio Code Marketplace review
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"Helped me better understand and analyze the hierarchy and structure of my applications. Looks awesome, performs great, and provides truly invaluable feedback!"

— Max, Java developer

Become a contributor

We’re a group of passionate engineers and architects aiming to drive innovation in software architecture and design. Software is oftentimes complex and its nuances can be difficult to communicate efficiently. We'd like to change that.

Join our open-source developer community to help us make life of developers better.

Join AppMap Community

AppMap works beautifully with these popular languages and frameworks

Languages and frameworks
Ruby on Rails