#212 · Frontend Framework Tools Developer Tool

Angular Converter

Convert common Angular patterns into modern equivalents with migration notes, confidence indicators, and manual-review warnings. Supported conversions include standalone components, inject(), modern control flow, signal-style inputs and outputs, and JavaScript or TypeScript cleanup.

Developer Input

Angular conversion input

Angular source code

import { Component, Input } from '@angular/core';
@Component({selector:'app-user',template:'<div *ngIf="user">{{ user.name }}</div>'})
export class UserComponent {
  @Input() user: any;
  constructor(private api: ApiService) {}
}

Conversion type

Target Angular version

Preserve comments Add required imports Mark manual review items Auto-run while typing

How to use this developer tool

Paste the Angular code to migrate.
Select one conversion mode.
Enter the intended Angular version.
Run the converter and inspect the migration notes before using the output.

What this developer tool does

The converter applies conservative text-based migrations for common Angular patterns and annotates conversions that cannot be completed safely without a compiler.

Detect Angular structure → identify convertible patterns → apply safe transformations → add required imports → flag unsupported or ambiguous sections.

Dynamic metadata, complex dependency injection, and multi-file migrations can require manual project changes.

Example

A constructor-injected service can be rewritten as an inject() field, while legacy *ngIf markup can be converted to an @if block.

Tips for better output

Convert one migration pattern at a time.
Review imports after each conversion.
Run project tests after replacing generated code.
Use the Angular Checker for compatibility warnings.

FAQ

How do I convert an Angular module component to standalone?

Select NgModule to Standalone to add standalone metadata and migration notes for imports and bootstrap changes.

How can I convert Angular constructor injection to inject()?

Choose Constructor DI to inject() to rewrite straightforward constructor parameters as inject() fields.

Can this tool convert *ngIf to Angular @if syntax?

Yes. Basic structural directive blocks are converted to modern control-flow skeletons.

How do I convert @Input to signal input() syntax?

Choose @Input to input() to convert simple declarations and add the required Angular import.

Does the converter update an entire Angular project?

No. It converts pasted source and provides manual steps for project-level changes.

Related developer tools

React Checker React Generator React Formatter React Converter

Conversion coverage

Area	Coverage
Standalone	Component metadata skeleton
Dependency Injection	Constructor fields to inject()
Control Flow	Basic ngIf and ngFor migration
Signals	Simple input/output skeletons

Browse more developer tools

Calldeveloper category hub

Browse Frontend Framework Tools