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    React Easy Crop

    A React component to crop images with easy interactions
    Filed under  › 

    • 🔾25%Overall
    • 53
    • 14 days
    • 🕩4
    • 👥18

    ⚠️ Note: this is a fork of https://ValentinH.github.io/react-easy-crop

    react-easy-crop

    A React component to crop images/videos with easy interactions

    version Monthly downloads brotli size All Contributors Build Status MIT License PRs Welcome

    react-easy-crop Demo

    Demo

    Check out the examples:

    Features

    • Supports drag, zoom and rotate interactions
    • Provides crop dimensions as pixels and percentages
    • Supports any images format (JPEG, PNG, even GIF) as url or base 64 string
    • Supports any videos format supported in HTML5
    • Mobile friendly

    Video tutorials from the community

    Installation

    yarn add react-easy-crop
    

    or

    npm install react-easy-crop --save
    

    Basic usage

    The Cropper is styled with position: absolute to take the full space of its parent. Thus, you need to wrap it with an element that uses position: relative or the Cropper will fill the whole page.

    import Cropper from 'react-easy-crop'
    
    const Demo = () => {
      const [crop, setCrop] = useState({ x: 0, y: 0 })
      const [zoom, setZoom] = useState(1)
    
      const onCropComplete = useCallback((croppedArea, croppedAreaPixels) => {
        console.log(croppedArea, croppedAreaPixels)
      }, [])
    
      return (
        <Cropper
          image={yourImage}
          crop={crop}
          zoom={zoom}
          aspect={4 / 3}
          onCropChange={setCrop}
          onCropComplete={onCropComplete}
          onZoomChange={setZoom}
        />
      )
    }
    

    Styles

    This component requires some styles to be available in the document. By default, you don't need to do anything, the component will automatically inject the required styles in the document head. If you want to disable this behaviour and manually inject the CSS, you can set the disableAutomaticStylesInjection prop to true and use the file available in the package: react-easy-crop/react-easy-crop.css.

    Props

    Prop Type Required Description
    image string The image to be cropped. image or video is required.
    video string or Array<{ src: string; type?: string }> The video to be cropped. image or video is required.
    crop { x: number, y: number } Position of the media. { x: 0, y: 0 } will center the media under the cropper.
    zoom number Zoom of the media between minZoom and maxZoom. Defaults to 1.
    rotation number (in degrees) Rotation of the media. Defaults to 0.
    aspect number Aspect of the cropper. The value is the ratio between its width and its height. The default value is 4/3
    minZoom number Minimum zoom of the media. Defaults to 1.
    maxZoom number Maximum zoom of the media. Defaults to 3.
    zoomWithScroll boolean Enable zoom by scrolling. Defaults to true
    cropShape 'rect' \ 'round' Shape of the crop area. Defaults to 'rect'.
    cropSize { width: number, height: number } Size of the crop area (in pixels). If you don't provide it, it will be computed automatically using the aspect prop and the media size. You should probably not use this option and should rely on aspect instead. See https://github.com/ValentinH/react-easy-crop/issues/186.
    showGrid boolean Whether to show or not the grid (third-lines). Defaults to true.
    zoomSpeed number Multiplies the value by which the zoom changes. Defaults to 1.
    objectFit demo 'contain', 'horizontal-cover' or 'vertical-cover' Specifies how the image is shown in the cropper:. contain: the image will be adjusted to be fully visible, horizontal-cover: the image will horizontally fill the cropper, vertical-cover: the image will vertically fill the cropper. Defaults to "contain".
    onCropChange crop => void Called everytime the crop is changed. Use it to update your crop state.
    onZoomChange zoom => void Called everytime the zoom is changed. Use it to update your zoom state.
    onRotationChange rotation => void Called everytime the rotation is changed (with mobile gestures). Use it to update your rotation state.
    onCropSizeChange cropSize => void Called when a change in either the cropSize width or the cropSize height occurs.
    onCropComplete Function Called when the user stops moving the media or stops zooming. It will be passed the corresponding cropped area on the media in percentages and pixels (rounded to the nearest integer)
    onCropAreaChange Function Very similar to onCropComplete but is triggered for every user interaction instead of waiting for the user to stop.
    transform string CSS transform to apply to the image in the editor. Defaults to translate(${crop.x}px, ${crop.y}px) rotate(${rotation}deg) scale(${zoom}) with variables being pulled from props.
    style { containerStyle: object, mediaStyle: object, cropAreaStyle: object } Custom styles to be used with the Cropper. Styles passed via the style prop are merged with the defaults.
    classes { containerClassName: string, mediaClassName: string, cropAreaClassName: string } Custom class names to be used with the Cropper. Classes passed via the classes prop are merged with the defaults. If you have CSS specificity issues, you should probably use the disableAutomaticStylesInjection prop.
    mediaProps object The properties you want to apply to the media tag ( or
    restrictPosition boolean Whether the position of the media should be restricted to the boundaries of the cropper. Useful setting in case of zoom < 1 or if the cropper should preserve all media content while forcing a specific aspect ratio for media throughout the application. Example: https://codesandbox.io/s/1rmqky233q.
    initialCroppedAreaPercentages { width: number, height: number, x: number, y: number} Use this to set the initial crop position/zoom of the cropper (for example, when editing a previously cropped media). The value should be the same as the croppedArea passed to onCropComplete. This is the preferred way of restoring the previously set crop because croppedAreaPixels is rounded, and when used for restoration, may result in a slight drifting crop/zoom
    initialCroppedAreaPixels { width: number, height: number, x: number, y: number} Use this to set the initial crop position/zoom of the cropper (for example, when editing a previously cropped media). The value should be the same as the croppedAreaPixels passed to onCropComplete Example: https://codesandbox.io/s/pmj19vp2yx.
    onInteractionStart Function Called everytime a user starts a wheel, touch or mousedown event.
    onInteractionEnd Function Called everytime a user ends a wheel, touch or mousedown event.
    onMediaLoaded Function Called when media gets loaded. Gets passed an mediaSize object like { width, height, naturalWidth, naturalHeight }
    disableAutomaticStylesInjection boolean Whether to auto inject styles using a style tag in the document head on component mount. When disabled you need to import the css file into your application manually (style file is available in react-easy-crop/react-easy-crop.css). Example with sass/scss @import "~react-easy-crop/react-easy-crop";.

    onCropComplete(croppedArea, croppedAreaPixels)

    This callback is the one you should use to save the cropped area of the media. It's passed 2 arguments:

    1. croppedArea: coordinates and dimensions of the cropped area in percentage of the media dimension
    2. croppedAreaPixels: coordinates and dimensions of the cropped area in pixels.

    Both arguments have the following shape:

    const area = {
      x: number, // x/y are the coordinates of the top/left corner of the cropped area
      y: number,
      width: number, // width of the cropped area
      height: number, // height of the cropped area
    }
    

    onCropAreaChange(croppedArea, croppedAreaPixels)

    This is the exact same callback as onCropComplete, but is triggered for all user interactions. It can be used if you are not performing any render action on it.

    1. croppedArea: coordinates and dimensions of the cropped area in percentage of the media dimension
    2. croppedAreaPixels: coordinates and dimensions of the cropped area in pixels.

    Both arguments have the following shape:

    const area = {
      x: number, // x/y are the coordinates of the top/left corner of the cropped area
      y: number,
      width: number, // width of the cropped area
      height: number, // height of the cropped area
    }
    

    onMediaLoaded(mediaSize)

    Called when media gets successfully loaded. This is useful if you want to have a custom zoom/crop strategy based on media size.

    Example:

    const CONTAINER_HEIGHT = 300
    
    const CroppedImage = ({ image }) => {
      const [crop, onCropChange] = React.useState({ x: 0, y: 0 })
      const [zoom, onZoomChange] = React.useState(1)
      return (
        <Cropper
          image={image}
          crop={crop}
          zoom={zoom}
          onCropChange={onCropChange}
          onZoomChange={onZoomChange}
          onMediaLoaded={(mediaSize) => {
            // Adapt zoom based on media size to fit max height
            onZoomChange(CONTAINER_HEIGHT / mediaSize.naturalHeight)
          }}
        />
      )
    }
    

    Development

    yarn
    yarn start
    

    Now, open http://localhost:3001/index.html and start hacking!

    License

    MIT

    Contributors

    Thanks goes to these wonderful people (emoji key):


    Valentin Hervieu

    💬 🐛 💻 📖 💡 🚇 👀 ⚠️ 🔧

    Juntae Kim

    💻

    tafelito

    💻

    Nicklas

    💻

    Kyle Poole

    💻

    Nathaniel Bibler

    💻

    TheRealSlapshot

    💻

    Claudiu Andrei

    💻

    MattyBalaam

    💻

    Christian Kehr

    📖

    Christopher Albanese

    💻

    Benjamin Piouffle

    💻

    mbalaam

    📖

    Edouard Short

    💻 🤔

    All Contributors

    🔧

    FillPower1

    💻

    Nihey Takizawa

    📖

    Alex Lende

    🚧

    Stefano Ruth

    💻 🤔

    David Vail

    💻

    ersefuril

    💻

    Michal-Sh

    💻

    Ivan Galiatin

    💻 💡

    Raed

    🚇

    cvolant

    💻

    CodingWith-Adam

    📖

    LiveBoom

    💻

    Mateusz Juszczyk

    💻

    Darren Labithiotis

    💻

    Oleksii

    📖

    This project follows the all-contributors specification. Contributions of any kind welcome!

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