/fabric.js

Javascript Canvas Library, SVG-to-Canvas (& canvas-to-SVG) Parser

Primary LanguageJavaScriptOtherNOASSERTION

Fabric.js

A simple and powerful Javascript HTML5 canvas library.

🩺 🧪 CodeQL

cdnjs jsdelivr Gitpod Ready-to-Code

NPM Downloads per month Bower

Sponsor asturur Sponsor melchiar Sponsor ShaMan123 Patreon

Features

  • Out of the box interactions such as scale, move, rotate, skew, group...
  • Built in shapes, controls, animations, image filters, gradients, patterns, brushes...
  • JPG, PNG, JSON and SVG i/o
  • Typed and modular
  • Unit tested

Supported Browsers/Environments

Context Supported Version Notes
Firefox ✔️ modern version (tbd)
Safari ✔️ version >= 10.1
Opera ✔️ chromium based
Chrome ✔️ modern version (tbd)
Edge ✔️ chromium based
Edge Legacy ❌
IE11 ❌
Node.js ✔️ Node.js installation

Fabric.js Does not use transpilation by default, the browser version we support is determined by the level of canvas api we want to use and some js syntax. While JS can be easily transpiled, canvas API can't.

Installation

$ npm install fabric --save
// or
$ yarn add fabric
// es6 imports
import { fabric } from 'fabric';

//  or cjs
const fabric = require('fabric').fabric;

Browser

cdnjs jsdelivr

See browser modules for using es6 imports in the browser or use a dedicated bundler.

Node.js

Fabric.js depends on node-canvas for a canvas implementation (HTMLCanvasElement replacement) and jsdom for a window implementation on node. This means that you may encounter node-canvas limitations and bugs.

Follow these instructions to get node-canvas up and running.

Quick Start

Plain HTML 
<canvas id="canvas" width="300" height="300"></canvas>

<script src="https://cdn.jsdelivr.net/npm/fabric"></script>
<script>
  const canvas = new fabric.Canvas('canvas');
  const rect = new fabric.Rect({
    top: 100,
    left: 100,
    width: 60,
    height: 70,
    fill: 'red',
  });
  canvas.add(rect);
</script>
ReactJS 
import React, { useEffect, useRef } from 'react';
import { fabric } from 'fabric';

export const FabricJSCanvas = () => {
  const canvasEl = useRef(null);
  useEffect(() => {
    const options = { ... };
    const canvas = new fabric.Canvas(canvasEl.current, options);
    // make the fabric.Canvas instance available to your app
    updateCanvasContext(canvas);
    return () => {
      updateCanvasContext(null);
      canvas.dispose();
    }
  }, []);

  return (<canvas width="300" height="300" ref={canvasEl}/>)
});
Node.js 
const http = require('http');
const { fabric } = require('fabric');

const port = 8080;

http
  .createServer((req, res) => {
    const canvas = new fabric.Canvas(null, { width: 100, height: 100 });
    const rect = new fabric.Rect({ width: 20, height: 50, fill: '#ff0000' });
    const text = new fabric.Text('fabric.js', { fill: 'blue', fontSize: 24 });
    canvas.add(rect, text);
    canvas.renderAll();
    if (req.url === '/download') {
      res.setHeader('Content-Type', 'image/png');
      res.setHeader('Content-Disposition', 'attachment; filename="fabric.png"');
      canvas.createPNGStream().pipe(res);
    } else if (req.url === '/view') {
      canvas.createPNGStream().pipe(res);
    } else {
      const imageData = canvas.toDataURL();
      res.writeHead(200, '', { 'Content-Type': 'text/html' });
      res.write(`<img src="${imageData}" />`);
      res.end();
    }
  })
  .listen(port, (err) => {
    if (err) throw err;
    console.log(
      `> Ready on http://localhost:${port}, http://localhost:${port}/view, http://localhost:${port}/download`
    );
  });

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Canvas2PDF PDF renderer
html-to-image HTML to image/canvas

More Resources

Credits Patreon