Map your app with AppMap

See what your code really does with interactive maps of your software. Inspect important end-to-end code and data flows. Uncover the hidden design and implementation bugs that mess up great apps.

Do all this and more, right in your code editor.
Powerful, easy to use, FREE and open source

Fewer defects, less rework

Interactive code analysis detects major and minor changes to code behavior, architecture, and design. Find and compare changes to: web services, routes, parameters, status codes, SQL, dependencies, third party libraries, database schemas, exceptions, and key functions. See and resolve issues before you commit code.

Respond to breaking changes faster

Most observability tools can only point you in the direction of the problem. Interactive code analysis links unexpected behavior directly to the code that is causing the issue. No more muddling through breakpoints or sifting through logs. Get essential information to the right team, faster.

Stay in your flow

Get the big picture, with a complete, searchable directory of web services, code, libraries, dependencies, and SQL. Drill down into detailed code flows, and even farther down into source. Then step all the way back out again, without ever leaving your code editor.

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

Our Products

Interactive code analysis tool

AppMap is an open source, interactive tool purpose built for developers. It allows you to see the impact of proposed code changes to software design in your code editor. It includes:

  1. Dependency maps
  2. Execution trace diagrams
  3. List of web services and SQL queries
  4. Search and filter code, web services, and SQL
  5. Links to source code

Learn more about AppMap »
interactive code analysis platform

AppMap Cloud is an interactive code analysis platform built for teams. It creates a centralized knowledge base of information about the current, pending, and historical state of your software architecture and code behavior. AppMap Cloud integrates with your continuous integration, QA or even production environment.

Learn more about AppMap Cloud »

AppMap works beautifully with these popular languages and frameworks

Languages and frameworks
Ruby on Rails

Explore, Understand, and
Improve Your Software

Quickly grok the largest code bases

Start with the auto-generated dependency map. Navigate to related code, queries, and web services. See how all the components interact to make a feature.

See an example »

Debug efficiently

Start your debug session with AppMaps. Working top-down from the high-level dependencies map, drill down into detailed trace diagrams and then into source code. Get to the root cause fast.

See an example »

Unblock yourself

Having a hard time figuring out how a 3rd party library or complex feature works? Record an AppMap and see how all the parts fit together, navigating from high-level down to function, parameter, and SQL details.

See an example »

Help Us Make Life Better for Developers

We welcome contributions from the open source developer community. Joining our discussions on Discord and share any comments, suggestions, and code contributions here.

Looking to get started? Check out the demo!

View Demos