352-fabric

Object model for HTML5 canvas, and SVG-to-canvas parser. Backed by jsdom and node-canvas.


Keywords
canvas, graphic, graphics, SVG, node-canvas, parser, HTML5, object model
License
MIT
Install
npm install 352-fabric@1.7.8

Documentation

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.

Migrating to v6

v6 is a MAJOR effort including migrating to TS and es6, countless fixes, rewrites and features.
Currently in beta, refer to #8299 for guidance.

$ npm install fabric@beta --save
// or
$ yarn add fabric@beta

Installation

$ npm install fabric --save
// or
$ yarn add 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

// v6
import { Canvas, Rect } from 'fabric'; // browser
import { StaticCanvas, Rect } from 'fabric/node'; // node

// v5
import { fabric } from 'fabric';
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 * as fabric from 'fabric'; // v6
import { fabric } from 'fabric'; // v5

export const FabricJSCanvas = () => {
  const canvasEl = useRef<HTMLCanvasElement>(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
import http from 'http';
import * as fabric from 'fabric/node'; // v6
import { fabric } from 'fabric'; // v5

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`
    );
  });

See our ready to use templates.


Other Solutions

Project Description Demo
Three.js 3D graphics
PixiJS WebGL renderer
Konva Similar features
html-to-image HTML to image/canvas

More Resources

Credits Patreon