Ace your code review

Ace your code review with an interactive map of your code in action. No more guessing about how code changes work, if they’re secure or how the larger codebase will be impacted. Attach auto-generated AppMaps to your PR to show new code’s behavior and prove it won’t introduce side effects.

Visualize PRs to speed up code reviews

Attach interactive AppMaps to your PR to give your teammates a fast, visual overview of changes and context. Dependency maps show how changes impact the codebase and trace diagrams let you explore code execution.

How to record and add interactive diagrams to a pull request »

Preview the impact and commit with confidence

With an auto-generated AppMap, see the impact of your changes before you commit, right in your code editor. AppMap shows how your code actually works so you don’t have to worry about introducing unintended side effects that need to be reworked later.

How to record an interactive diagram of an issue »

See the local and distant effects of changes

AppMap helps find local issues in your code plus the distant effects of changes. Interactive maps of your code in action show how every component interacts and identify unintended side effects related to web services, APIs, third-party libraries and databases.

How to debug unintended side effects with AppMap »

Catch architectural and maintainability issues

AppMap visualizes larger application design changes and gives you functionality context, so you can catch issues that static analysis tools miss. High-level dependency maps show how changes impact different parts of the codebase, how changes fit into the existing architecture and if changes are easily maintainable. See architectural issues, unjustified logic complications, security vulnerabilities and sources for test coverage improvement.

How to use AppMaps diagrams in the code review process »

Automatically generated AppMaps of your code include:

  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 »

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 client for your language
AppMap client 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

AppMap works beautifully with these popular languages and frameworks

Languages and frameworks
Ruby
Ruby on Rails
MiniTest
ActiveRecord
Sequel
RSpec
Cucumber
Java
Spring
JUnit
TestNG
Maven
Gradle
Surefire
Python
Django
Flask
pytest
unittest