Navigate your code
in a whole new way

AppMaps let you explore your software's dependencies and design by enhancing your code editor experience.

AppMaps are beautiful dependency maps, execution traces, service and schema catalogs, automatically generated for you- right where you work.

Integrated together, linked to the code, all in one place

Explore, Understand, and Improve
Your Software

For developers
Quickly Grok the Largest Code Bases

Start with the auto-generated dependency map. Navigate to related code, queries, and web services. See how it all works together to power a feature.

Leave the Code Better Than You Found It

Every test case becomes living documentation of the design of a feature. See the difference between clean and messy components. Untangle the spaghetti as you work.

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.

For teams
Shared Knowledge Base

Store all knowledge about your software in the form of interactive maps that are easily searchable and filterable.

Effective Software Design Reviews

Help your teammates and other teams understand the context of application code changes.

Crystal Clear Bug Reports

Record the code behavior of an entire problem from end-to-end, and attach it to the bug report.

For Enterprise
An API for Analyzing Architecture

Standardize and unify your platform architecture and dependencies. Detect breaking changes to web services and database schemas before they are deployed. Scan for software weaknesses and flag risky changes for further review.

Streamline Your Security and Architecture Audits

Audit code easily and continuously, thanks to auto-generated maps of software architecture and design. Eliminate costly code freezes and ship new features every day, even in the most sensitive applications.

Legacy Code: No Tests? No Problem!

The AppMap framework has a wide variety of data collection methods. Organizations with thin automated test coverage can still benefit from the entire suite of AppMap and AppLand tools for developers and teams.

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

Visual Studio Code Marketplace reviews
star star star star star

"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

star star star star star

"Helpful to understand the architecture of the app, the relationship between classes and the data flow. This is ideal for new or existing projects and also great tool to debug."

— Nicolás, Ruby developer

star star star star star

"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

Read more

AppLand 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

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.

AppMap is open source software

Take a look under the hood at AppMap software design analysis.

Explore, analyze and improve your software's architecture

Get a Demo!