Fabric.js is a framework that makes it easy to work with HTML5 canvas element. It is an interactive object model on top of canvas element. It is also an SVG-to-canvas parser.
Using Fabric.js, you can create and populate objects on canvas; objects like simple geometrical shapes — rectangles, circles, ellipses, polygons, or more complex shapes consisting of hundreds or thousands of simple paths. You can then scale, move, and rotate these objects with the mouse; modify their properties — color, transparency, z-index, etc. You can also manipulate these objects altogether — grouping them with a simple mouse selection.
Non-Technical Introduction to Fabric
Fabric.js allows you to easily create simple shapes like rectangles, circles, triangles and other polygons or more complex shapes made up of many paths, onto the HTML
Contributions are very much welcome!
- Unit tested (1150+ tests at the moment, 79%+ coverage)
- Modular (~60 small "classes", modules, mixins)
- Encapsulated in one object
- No browser sniffing for critical functionality
- Runs under ES5 strict mode
- Runs on a server under Node.js (active stable releases and latest of current) (see Node.js limitations)
- Follows Semantic Versioning
- Firefox 2+
- Safari 3+
- Opera 9.64+
- Chrome (all versions)
- IE10, IE11, Edge
You can run automated unit tests right in the browser.
Install with bower
$ bower install fabric
Install with npm
To install Fabric.js using npm, you must first manually install Cairo on your system. Cairo is a system library which powers node-canvas, which Fabric.js relies on. When the installation is complete, you may need to restart your terminal or command prompt before installing fabric.
$ npm install fabric --save
Build distribution file [~77K minified, ~20K gzipped]
$ node build.js
2.1 Or build a custom distribution file, by passing (comma separated) module names to be included.
$ node build.js modules=text,serialization,parser // or $ node build.js modules=text // or $ node build.js modules=parser,text // etc.
By default (when none of the modules are specified) only basic functionality is included. See the list of modules below for more information on each one of them. Note that default distribution has support for static canvases only.
To get minimal distribution with interactivity, make sure to include corresponding module:
$ node build.js modules=interaction
2.2 You can also include all modules like so:
$ node build.js modules=ALL
2.3 You can exclude a few modules like so:
$ node build.js modules=ALL exclude=gestures,image_filters
Create a minified distribution file
# Using YUICompressor (default option) $ node build.js modules=... minifier=yui # or Google Closure Compiler $ node build.js modules=... minifier=closure
Enable AMD support via require.js (requires uglify)
$ node build.js requirejs modules=...
Create source map file for better productive debugging (requires uglify or google closure compiler).
More information about source maps.
$ node build.js sourcemap modules=...
If you use google closure compiler you have to add
sourceMappingURLmanually at the end of the minified file all.min.js (see issue https://code.google.com/p/closure-compiler/issues/detail?id=941).
Ensure code guidelines are met (prerequisite:
npm -g install eslint)
$ npm run lint && npm run lint_tests
Make sure testem is installed
$ npm install -g testem
Run tests Chrome and Node (by default):
See testem docs for more info: https://github.com/testem/testem
Documentation is always available at http://fabricjs.com/docs/.
These are the optional modules that could be specified for inclusion, when building custom version of fabric:
- text — Adds support for static text (
- itext — Adds support for interactive text (
- serialization — Adds support for
- interaction — Adds support for interactive features of fabric — selecting/transforming objects/groups via mouse/touch devices.
- parser — Adds support for
- image_filters — Adds support for image filters, such as grayscale of white removal.
- easing — Adds support for animation easing functions
- node — Adds support for running fabric under node.js, with help of jsdom and node-canvas libraries.
- freedrawing — Adds support for free drawing
- gestures — Adds support for multitouch gestures with help of Event.js
- object_straightening — Adds support for rotating an object to one of 0, 90, 180, 270, etc. depending on which is angle is closer.
- animation — Adds support for animation (
Additional flags for build script are:
- requirejs — Makes fabric requirejs AMD-compatible in
dist/fabric.js. Note: an unminified, requirejs-compatible version is always created in
- no-strict — Strips "use strict" directives from source
- no-svg-export — Removes svg exporting functionality
- sourcemap - Generates a sourceMap file and adds the
sourceMappingURL(only if uglifyjs is used) to
node build.js modules=ALL exclude=json no-strict no-svg-export
Examples of use
Adding red rectangle to canvas
Staying in touch
Questions, suggestions — fabric.js on Google Groups.
Fabric on LibKnot.
Get help in Fabric's IRC channel — irc://irc.freenode.net/#fabric.js
- Andrea Bogazzi for help with bugs, new features, documentation, GitHub issues
- Ernest Delgado for the original idea of manipulating images on canvas
- Maxim "hakunin" Chernyak for ideas, and help with various parts of the library throughout its life
- Sergey Nisnevich for help with geometry logic
- Stefan Kienzle for help with bugs, features, documentation, GitHub issues
- Shutterstock for the time and resources invested in using and improving fabric.js
- And all the other GitHub contributors
Copyright (c) 2008-2015 Printio (Juriy Zaytsev, Maxim Chernyak)
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.