vis.js is a dynamic, browser-based visualization library
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Vis.js is a dynamic, browser based visualization library. The library is designed to be easy to use, handle large amounts of dynamic data, and enable manipulation of the data. The library consists of the following components:

  • DataSet and DataView. A flexible key/value based data set. Add, update, and remove items. Subscribe on changes in the data set. A DataSet can filter and order items, and convert fields of items.
  • DataView. A filtered and/or formatted view on a DataSet.
  • Graph2d. Plot data on a timeline with lines or barcharts.
  • Graph3d. Display data in a three dimensional graph.
  • Network. Display a network (force directed graph) with nodes and edges.
  • Timeline. Display different types of data on a timeline.

The vis.js library is developed by Almende B.V.


Install via npm:

npm install vis

Install via bower:

bower install vis

Or download the library from the github project:


To use a component, include the javascript and css files of vis in your web page:

  <script src="components/vis/dist/vis.js"></script>
  <link href="components/vis/dist/vis.css" rel="stylesheet" type="text/css" />
  <script type="text/javascript">
    // ... load a visualization

or load vis.js using require.js. Note that vis.css must be loaded too.

  paths: {
    vis: 'path/to/vis',
require(['vis'], function (math) {
  // ... load a visualization

A timeline can be instantiated as:

var timeline = new vis.Timeline(container, data, options);

Where container is an HTML element, data is an Array with data or a DataSet, and options is an optional object with configuration options for the component.


A basic example on loading a Timeline is shown below. More examples can be found in the examples directory of the project.

  <title>Timeline basic demo</title>
  <script src="vis/dist/vis.js"></script>
  <link href="vis/dist/vis.css" rel="stylesheet" type="text/css" />

  <style type="text/css">
    body, html {
      font-family: sans-serif;
<div id="visualization"></div>

<script type="text/javascript">
  var container = document.getElementById('visualization');
  var data = [
    {id: 1, content: 'item 1', start: '2013-04-20'},
    {id: 2, content: 'item 2', start: '2013-04-14'},
    {id: 3, content: 'item 3', start: '2013-04-18'},
    {id: 4, content: 'item 4', start: '2013-04-16', end: '2013-04-19'},
    {id: 5, content: 'item 5', start: '2013-04-25'},
    {id: 6, content: 'item 6', start: '2013-04-27'}
  var options = {};
  var timeline = new vis.Timeline(container, data, options);


To build the library from source, clone the project from github

git clone git://

The source code uses the module style of node (require and module.exports) to organize dependencies. To install all dependencies and build the library, run npm install in the root of the project.

cd vis
npm install

Then, the project can be build running:

npm run build

To automatically rebuild on changes in the source files, once can use

npm run watch

This will both build and minify the library on changes. Minifying is relatively slow, so when only the non-minified library is needed, one can use the watch-dev script instead:

npm run watch-dev


To test the library, install the project dependencies once:

npm install

Then run the tests:

npm test


Copyright (C) 2010-2014 Almende B.V.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.