Angular 14 Image Upload With Live Preview to Crop,Scale & Resize Image Using ngx-image-cropper in TS

Welcome folks today in this blog post we will be uploading images in angular 14 with live preview and we will be resizing ,cropping and scaling images in browser using ngx-image-cropper library in typescript. All the full source code of the application is shown below.

Get Started

In order to get started you need to make a new angular app using the below command as shown below

ng new sampleapp

And after that you need to install the below libraries using the below command as shown below

npm i ngx-image-cropper

And after that you will see the below directory structure of the angular app as shown below

Now first of all you need to go to app.module.ts file and copy paste the below code

app.module.ts

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';

import { ImageCropperModule } from 'ngx-image-cropper';

import { AppComponent } from './app.component';



@NgModule({
  imports:      [ BrowserModule, FormsModule, ImageCropperModule ],
  declarations: [ AppComponent],
  bootstrap:    [ AppComponent ]
})
export class AppModule { }

import { NgModule } from '@angular/core';

import { BrowserModule } from '@angular/platform-browser';

import { FormsModule } from '@angular/forms';

import { ImageCropperModule } from 'ngx-image-cropper';

import { AppComponent } from './app.component';

@NgModule({

imports: [ BrowserModule, FormsModule, ImageCropperModule ],

declarations: [ AppComponent],

bootstrap: [ AppComponent ]

})

export class AppModule { }

And now you need to go to app.component.html file and copy paste the below html code

app.component.html

<input type="file" (change)="fileChangeEvent($event)" />

<image-cropper
    [imageChangedEvent]="imageChangedEvent"
    [maintainAspectRatio]="true"
    [aspectRatio]="4 / 3"
    format="png"
    (imageCropped)="imageCropped($event)"
    (imageLoaded)="imageLoaded()"
    (cropperReady)="cropperReady()"
    (loadImageFailed)="loadImageFailed()"
></image-cropper>

<img [src]="croppedImage" />

<image-cropper

[imageChangedEvent]="imageChangedEvent"

[maintainAspectRatio]="true"

[aspectRatio]="4 / 3"

format="png"

(imageCropped)="imageCropped($event)"

(imageLoaded)="imageLoaded()"

(cropperReady)="cropperReady()"

(loadImageFailed)="loadImageFailed()"

></image-cropper>

As you can see in the above html code we have the input field where we allow the user to select the image and then we have attached the onChange event listener when the file is changed. And then we have the actual image-cropper widget to actually show the live preview of the selected image and inside it we have different attributes to resize,crop and scale image at the same time and live preview will be seen by the user instantly and you can download the image.

And now we need to go to app.component.ts file and copy paste the following code

app.component.ts

import { Component } from '@angular/core';
import { ImageCroppedEvent } from 'ngx-image-cropper';

@Component({
  selector: 'my-app',
  templateUrl: './app.component.html',
  styleUrls: [ './app.component.css' ]
})
export class AppComponent  {
  name = 'Angular';

  imageChangedEvent: any = '';
  croppedImage: any = '';
    
  fileChangeEvent(event: any): void {
      this.imageChangedEvent = event;
  }
  imageCropped(event: ImageCroppedEvent) {
      this.croppedImage = event.base64;
  }
  imageLoaded() {
      // show cropper
  }
  cropperReady() {
      // cropper ready
  }
  loadImageFailed() {
      // show message
  }
}

import { Component } from '@angular/core';

import { ImageCroppedEvent } from 'ngx-image-cropper';

@Component({

selector: 'my-app',

templateUrl: './app.component.html',

styleUrls: [ './app.component.css' ]

})

export class AppComponent {

name = 'Angular';

imageChangedEvent: any = '';

croppedImage: any = '';

fileChangeEvent(event: any): void {

this.imageChangedEvent = event;

}

imageCropped(event: ImageCroppedEvent) {

this.croppedImage = event.base64;

}

imageLoaded() {

// show cropper

}

cropperReady() {

// cropper ready

}

loadImageFailed() {

// show message

}

As you can see we have different methods for various operations that are listed above. And then we are also getting the base64 code of the selected image.