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Repository includes React version and Vanilla JS adapter for standalone usage

Release Contributions welcome License Scaleflex team


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Learn more about Filerobot

Filerobot Image Editor

DocsDemoCodeSandboxVideo tutorial

The Filerobot Image Editor is the easiest way to integrate an easy-to-use image editor in your web application. Integrated with few lines of code, your users will be able to apply basic transformations like resize, crop, rotate and various filters to any image.

Filerobot Image Editor


Table of contents



brightness, contrast, exposure, and saturation



edge enhance, emboss, grungy, hazy, lomo, radial blur, sin city, tilt shift



cross process, glow sun, jarques, love, old boot, orange peel, pin hole, sepia, sun rise, vintage



rotate and flip (mirror effect)








Light theme

or use your custom color scheme

Light theme

Standalone usage


Use the latest CDNized plugin version:

<script src=""></script>

Quick start

We provide an easy way to integrate the image editor in your applications:

    const ImageEditor = new FilerobotImageEditor();'');

edeit on codesandbox


FilerobotImageEditor(config: {}, callbacks: {}): function

Initialization of Filerobot Image Editor plugin.

callbacks.onOpen(src: string/blob): function - triggered when modal is opened

callbacks.onBeforeComplete({ status: string, imageName: string, imageMime: string, canvas: canvas element }): function - triggered before onComplete; if it returns false, it cancels the default behaviour and you can use canvas element to upload to a 3rd-party service

callbacks.onComplete(url: string, file: object): function - triggered on completion and returnes the URL of the edited image

callbacks.onError(errorResponse: object): function - triggered on having an error while uploading an image through filerobot or cloudimage.

callbacks.onClose({ status }): function - is triggered when modal is closed

status: the behavior/way the modal closed through

one of the following values would be returned depending on the case, 'close-button-clicked' => When modal is closed through clicking over the close button.
'toolbar-cancel-button-clicked' => When modal is closed through clicking over cancel button of toolbar (if shown).
'esc-key-pressed' => When modal is closed through pressing escape key.
'modal-overlay-clicked' => When modal is closed through clicking over the modal's overlay.
'image-edits-completed' => When modal is closed after finishing the edits of the image and not downloaded or uploaded.
'image-downloaded' => When modal is closed after the image is downloaded.
'image-uploaded-filerobot' => When modal is closed after uploading the image to Filerobot.
'image-uploaded-cloudimage'=> When modal is closed after uploading the image to Cloudimage.
'image-uploading-fail-filerobot' => When modal is closed after failing the uploading to Filerobot. function

Open editor modal.

  • url: string (required) - the URL of the image to be edited

ImageEditor.close(): function

Close editor modal.

ImageEditor.unmount(): function

Destroy the editor

React component usage


$ npm install --save filerobot-image-editor

Quick start

We provide an easy way to integrate the image editor in your applications:

import React, { useState } from 'react';
import { render } from 'react-dom';
import FilerobotImageEditor from 'filerobot-image-editor';

const App = () => {
  const src = '';
  const [show, toggle] = useState(false);

  return (
      <h1>Filerobot Image Editor</h1>

      <img src={src} onClick={() => { toggle(true) }} alt="example image"/>

        onClose={() => { toggle(false) }}

render(<App/>, document.getElementById('app'));

edeit on codesandbox


show: bool (required)

default: false

Trigger, to display the image editor widget.

config: object

Image editor config.

onClose(): function (required)

Callback, triggers on closing the image editor widget.

onOpen(): function (optional)

Callback, triggers on opening the image editor widget.

onComplete(): function (required)

Callback, triggers on completing processing an image.

onError(): function (required)

Callback, triggers on having an error while uploading an image through filerobot or cloudimage.


tools: [string]

default: ['adjust', 'effects', 'filters', 'rotate', 'crop', 'resize', 'watermark', 'shapes', 'image', 'text']

Filerobot Image Editor tools. = ['adjust', 'effects', 'filters', 'rotate'];

isLowQualityPreview: bool

default: true

Helps to improve performance of the Image Editor by applying transformations to a low-quality preview.

config.isLowQualityPreview = true;

language: string

default: 'en'

Language of interface

available languages: en (fr, de, ru are in progress), you can add translations by yourself

config.language = 'en';

translations: object

Key/translation pairs for i18n

config.translations = {
  en: {
    '': 'Save',
    'toolbar.apply': 'Apply',

See all translation keys here

reduceBeforeEdit: object

In order to improve performance when editing your images, you can reduce the image size before editing.

default: mode: 'manual', widthLimit: 2000px, heightLimit: 2000px

config.reduceBeforeEdit = {
    mode: 'manual',
    widthLimit: 2000,
    heightLimit: 2000
reduceBeforeEdit.mode: string | 'manual', 'auto' - Manual mode will show a modal before editing where you can reduce size of the image. Auto mode will reduce the image in the background (saving image proportion).
reduceBeforeEdit.widthLimit: number - Limit of the image width
reduceBeforeEdit.heightLimit: number - Limit of the image height

watermark: object

Add watermark on the image after applying image transformations.

default: null

watermark.url: string - url of the logo/image
watermark.urls: [url|{ url, label }] - list of url of the logo/image preset to select from in editor
watermark.position: string | default: 'right-top'; 'right-top', 'left-top', 'center-top', 'right-top', 'left-center', 'center', 'right-center', 'left-bottom', 'center-bottom', 'right-bottom' - position of the watermark
watermark.opacity: number | [0-1] - opacity of the watermark
watermark.applyByDefault: bool - apply by default
watermark.activePositions: string - 'corners', 'star', 'center', 'top-row', 'center-row', 'bottom-row' - select a preset or apply an array with 9 positons [1,1,1,1,1,1,1,1,1]
watermark.handleOpacity: boolean - default is true, hide or show the opacity range
watermark.imageFilter: function - default is null, pass a function that gets the image resource before draw and return a manipulated image (pass some fancy filter on the watermark)
watermark.defaultText: string - the default text that would be added as a text watermark
watermark.fonts: array - the fonts that would be shown & used in text watermark
watermark.lockScaleToPercentage: number | [0, 50, 100...etc] - default is 0 (don't scale the image & don't prevent user scaling), A percentage value to use in auto scaling the watermark's image width & height with preventing the ability to resize/scale the watermark's image for the user.

example: [{ label: 'Arial', value: 'Arial' }]

config.watermark = {
    url: '',
    position: 'center',
    opacity: 0.7,
    defaultText: 'Filerobot.....'

colorScheme: string | 'dark', 'light'

default: 'dark'

Color schemes; currently two themes are available: 'dark', 'light'. There is a possibility to create your custom theme here.

theme: object

Possibility to make your custom theme See the example here.


config.theme = {
  colors: {
    primaryBg: '#ffffff',
    primaryBgHover: '#f2f2f2',
    secondaryBg: '#F8FAFB',
    secondaryBgHover: '#DFE7ED',
    secondaryBgOpacity: 'rgba(255,255,255, 0.75)',
    text: '#5D6D7E',
    textHover: '#1a2329',
    textMute: '#aaa',
    textWarn: '#f7931e',
    accent: '#D5D8DC',
    button: {
      primary: '#6879EB',
      secondary: '#ffffff',
      border: 'transparent',
      hover: '#5064ea',
      active: '#3c4ec7'
    border: '#DFE7ED',
    borderLight: '#e1e1e1',
    disabledBg: 'rgba(255, 0, 0, 0.1)',
  fonts: [
    { label: 'Arial', value: 'Arial' },
    { label: 'Tahoma', value: 'Tahoma' },
    { label: 'Times New Roman', value: 'Times New Roman'},
    { label: 'Courier', value: 'Courier' },
    { label: 'Courier New', value: 'Courier New' },
    { label: 'Verdana', value: 'Verdana' }

cropPresets: object

Add custom crop templates. See the example here

resizePresets: object

Add custom resize templates. See the example here

beginCropArea: number | [0-1] - default: 1 (image size)

The crop area size shown/used automatically on starting crop.

minCropAreaWidth: number | default: undefined (no minimum)

The minimum size in pixels for crop area's width custom resizing, the user won't be able to resize the crop area width less than that size unless the crop area is resized through some crop preset.

minCropAreaHeight: number | default: undefined (no minimum)

The minimum size in pixels for crop area's height custom resizing, the user won't be able to resize the crop area height less than that size unless the crop area is resized through some crop preset.

showInModal: bool

default: true

Show the editor in modal true, or in an element of the page if the value is false in that case for JS version the value of elementId prop would be used to show the editor inside that element if the element isn't found it would be created and appended at the end of the page's body, For React version the editor would be shown in the place where the component is called.

elementId: string (JS version)

default: filerobot-image-editor (|-cloudimage (in case of using cloudimage) |-uploader (in case of using filerobot uploader)

The id used for the editor's wrapper element whether it's inside a modal or an element if it's not found on the page it's created and appended to body, please note the appending of -[cloudimage/uploader] string to filerobot-image-editor if you are using any of the services without assigning your own elementId.

noCapitalStrs: bool

default: false

Disabling the auto capitalizing of first letter of strings using (text-transform) css property

replaceCloseWithBackButton: boolean

default: false

Removes the iconed close button on the top right & replaces it with an iconed back button on the top left.

finishButtonLabel: string

default: download for default mode - save for other modes

The label shown in the finish button that triggers the completition methods & finish editing.

Filerobot Integration

Upload the image in your Filerobot storage container, edit it in the Image Editor and upload the result. Deliver lightning fast over CDN.

The example of Image Editor configuration using Filerobot service can be found here.

Learn more about Filerobot

Cloudimage Integration

Point the Image Editor to your origin image URL, edit it and deliver the result lightning fast over the Cloudimage image CDN. Limited to the Cloudimage inline transformation features.

The example of Image Editor configuration using the Cloudimage service can be found here.

Learn more about Cloudimage

Cloudimage URL params sealing

When using Cloudimage along with the Filerobot Image Editor (config.processWithCloudimage: true), additional capabilities are available. One such example is the URL parameter sealing. URL parameter sealing offers you a mechanism of encoding some or all of the URL parameters (watermarks, resizing, filters, etc.). This way, you are protecting your origin images so they cannot be delivered without the respective transformations. When sealing is configured, you will see two extra URL parameters: ci_seal (calculated hash of the protected query string) and ci_eqs (encrypted data).

Configuration for sealing:

filerobot.token: string

default: ''

The token for which URL sealing is configured and activated.

filerobot.version: string

default: ''

URL sealing is available from v7.

imageSealing.enabled: bool

default: false

imageSealing.salt: string

default: ''

The salt string is set upon configuration and is used for the encryption.

imageSealing.char_count: number

default: 10

Calculated hash (URL ci_seal parameter) length.

imageSealing.include_params: string[] | null

default: null

URL parameters to be sealed. By default (when it's null), all parameters will be sealed. Alternatively, you can set a list of parameters, for example: ['wat_url']. This way, you can freely append additional transformations to the URL (the sealed parameters cannot be overwritten).


config = {
  filerobot: {
    token: 'your-sealing-token',
    version: 'v7',
  imageSealing: {
    enabled: true,
    salt: 'some-salt-str',
    char_count: 10,
    include_params: ['wat', 'wat_url', 'wat_opacity', 'wat_scale', 'wat_pad', 'wat_gravity'],

What's on the Roadmap for the near future


  • Control image brightness, contrast, exposure, and saturation (done in v3.0.0)
  • Bright theme, plus possibility to make your custom theme (done in v3.0.0)
  • Rounds the corners of images
  • Mirror images effect (done in v3.0.0)
  • New filters and effects
  • Load file objects and dataURLs
  • Transform input images to other image formats
  • Easily integrate with third party libraries
  • Compress JPEG images via Optipress
  • Set to preview mode to render on top of an existing image
  • Watermarking (done in v3.0.0)
  • Configurable resize/crop templates (done in v3.0.0)
  • Correct degree of an image (done in v3.0.0)


  • Vanilla JS (done)
  • React (done)
  • Angular
  • Vue
  • Web Component

Filerobot UI Familiy


All contributions are super welcome!


Filerobot Image Editor is provided under the MIT License