#216 · Frontend Framework Tools Developer Tool

Angular Inspector

Inspect Angular source for architectural and maintainability risks. The tool estimates component complexity, dependency coupling, RxJS safety, cleanup coverage, template cost, change-detection risk, form size, routing complexity, and readiness for modern standalone Angular.

Developer Input

Angular inspection input

Angular source code

@Component({selector:'app-dashboard',template:'<div *ngFor="let item of items"><button (click)="calculate(item)">{{ calculate(item) }}</button></div>'})
export class DashboardComponent {
  constructor(private a:AService, private b:BService, private c:CService, private d:DService){}
  ngOnInit(){ setInterval(()=>this.refresh(),1000); this.a.load().subscribe(x=>this.data=x); }
  calculate(item:any){ return item.value * Math.random(); }
  refresh(){}
}

Inspection depth

Issue limit

issues

Analyze RxJS and cleanup Analyze template cost Suggest refactoring Auto-run while typing

How to use this developer tool

Paste an Angular artifact or combined component snippet.
Select Quick, Standard, or Deep inspection.
Choose whether to include cleanup, template, and refactoring analysis.
Run inspection and address the highest-risk findings first.

What this developer tool does

The inspector uses static heuristics to estimate architectural risk and produce prioritized refactoring recommendations.

Measure class and dependency size → detect async and cleanup patterns → inspect template expressions → score complexity and maintainability → generate recommendations.

Scores are comparative heuristics, not compiler or runtime performance measurements.

Example

A component with many injected services, a timer without cleanup, unmanaged subscriptions, and template method calls receives high coupling and cleanup-risk scores.

Tips for better output

Inspect large components before refactoring.
Move data access into services or facades.
Avoid expensive methods in templates.
Prefer explicit cleanup and lazy-loaded routes.

FAQ

How do I analyze Angular component complexity?

Paste the component and run Standard or Deep inspection to receive complexity and maintainability scores.

Can the tool detect Angular RxJS cleanup problems?

It detects common subscribe patterns without visible cleanup and reports them as risk indicators.

How do I find too many dependencies in an Angular component?

The dependency analysis counts injected services and flags high coupling.

Can Angular Inspector detect expensive template expressions?

It reports common method calls and complex expressions used directly in templates.

How do I decide when to split an Angular component?

Use the complexity, dependency, template, and responsibility findings to identify component-split candidates.

Related developer tools

React Checker React Generator React Formatter React Converter

Inspection scores

Area	Coverage
Complexity	Members, branches, and class size
Coupling	Injected and imported dependencies
Runtime Risk	RxJS, timers, and cleanup
Migration	Standalone and modern API readiness

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