Deliver Reliable NestJS Applications
Nest Graph Inspector turns your live NestJS runtime into architecture intelligence: visible dependencies, measurable change impact, and clear blast radius before production.
This is an actual render of the runtime graph. Open full-screen demo
See Impact Paths Easily
No manual tracing. Hover a module, provider, or controller and the graph shows the impact path for you.
Hover Any Node
Start from the module, provider, or controller you plan to change.
Follow the Highlight
Related paths stay visible while unrelated edges fade back.
Decide With Context
See affected app areas before making changes.
This example shows what happens when you hover UserRepository. Open full-screen demo
Find Circular Dependencies Fast
Warnings mark circular dependencies. Click one to see the loop.
Module Loops
See when modules depend on each other in a circle.
Provider Loops
See when providers loop inside one module.
Clear Fix Path
Open the warning and follow the path to fix.
Click a Warning chip to reveal the loop story. Open full-screen demo
Context-Aware AI Assistant
Ask graph and trace questions in plain language. In the real viewer, answers are grounded in your loaded runtime graph and generated by a model running inside your browser, so all you need is a WebGPU-capable desktop browser in a window at least 768px wide, with enough GPU memory for the model you pick.
Ask Naturally
Ask "trace AuthService dependencies" or "show OrdersModule to PaymentService" without query syntax.
Grounded, Not Generic
Answers use loaded graph context and call out missing data.
Your Model, Your Environment
Nothing to install and no server to run. The model downloads once into your browser cache, then runs on your own GPU, so the graph never leaves your machine.
The real viewer grounds every answer in your loaded runtime graph, and runs the model in your browser on WebGPU — nothing to install, and the graph never leaves the tab. Load your project
Run Providers From The Graph
Turn your runtime graph into an action surface. Select Service inside Module, choose a method, and execute the resolved provider without building a temporary endpoint.
Provider-First Execution
Run the provider NestJS already resolved in its module context.
JSON Arguments
Pass method inputs from the graph and inspect the result in place.
Faster Runtime Checks
Validate service behavior without wiring a controller, route, or one-off script.
Select the UserService provider and run a method: the call reaches the application running in this tab.