An extensible media player for the web

Usage no npm install needed!

<script type="module">
  import clapprPlayer from 'https://cdn.skypack.dev/@clappr/player';


Huge changes in the latest version. See 0.4.0 version changelog for more information

jsDelivr hits (npm scoped)

Clappr is an extensible media player for the web. Your architecture is projected primarily into plugins, adding low accoupling by design to the project and the possibility to add infinitely features easily.

Clappr uses by default the HTMLVideoElement which guarantees support to many platforms. You have the possibility to extends the default HTML5 playback or the playback interface to create one new media support just like a plugin!

Clappr is a composition of two other projects: @clappr/core and @clappr/plugins.

The @clappr/core contains the basic functionalities from Clappr (plugin architecture, class abstractions, public interfaces, events handlers and etc) and the @clappr/plugins are the repository where the plugins maintained by the Clappr team lives. More info about those projects into your repositories.

All Clappr projects are written in *.js using the latest features of ECMAScript.

Clappr is under development but production-ready. Feel free to open issues and send pull requests.

:triangular_flag_on_post: Table of Contents

:clapper: Usage

Via script tag:

Add the following script on your HTML:

  <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/@clappr/player@latest/dist/clappr.min.js"></script>

Now, create the player:

  <div id="player"></div>
    var player = new Clappr.Player({source: "http://your.video/here.mp4", parentId: "#player"});

:video_camera: Demo

Live demo to test, with a possibility to add external plugins.

:books: API Documentation

You can check the current API doc via @clappr/core here.

:hammer_and_wrench: Configuration

You can check the embed parameters supported by @clappr/core here.

:electric_plug: Built-in Plugins

You can check the plugins used on Clappr player via @clappr/plugins here.

:handshake: Third party plugins/integrations

External Plugins

Plugin Status Compatible with latest Clappr URL
Media Control Ready Yes https://github.com/joaopaulovieira/clappr-media-control-plugin
Video Queue (Playlist) Ready Yes https://github.com/joaopaulovieira/clappr-queue-plugin
Thumbnails on seekbar Ready Yes https://github.com/tjenkinson/clappr-thumbnails-plugin
Markers Ready Yes https://github.com/tjenkinson/clappr-markers-plugin
Level Selector Ready Yes https://github.com/clappr/clappr-level-selector-plugin
360 videos Ready Yes https://github.com/thiagopnts/video-360
Chromecast Ready Yes https://github.com/clappr/clappr-chromecast-plugin
DASH with shaka Ready Yes https://github.com/clappr/dash-shaka-playback
Playback Speed Ready Yes https://github.com/bikegriffith/clappr-playback-rate-plugin
Clappr Stats Ready Yes https://github.com/leandromoreira/clappr-stats
Clappr Nerd Stats Ready Yes https://github.com/lucasrodcosta/clappr-nerd-stats
Pause while far Ready Yes https://github.com/leandromoreira/clappr-pause-tab-visibility
RTMP Ready Yes https://github.com/clappr/clappr-rtmp-plugin
Picture-in-Picture Ready Yes https://github.com/tjenkinson/clappr-pip-plugin
Hybrid P2P & CDN Ready Yes https://support.streamroot.io/hc/en-us/articles/360000913654-Clappr
Comments on seekbar Ready ? https://github.com/Metrakit/clappr-comment-plugin
Voice control Ready ? https://github.com/flavioribeiro/clappr-speech-control-plugin
Dash WIP No https://github.com/shankardevy/clappr-dash-plugin
Youtube Ready No https://github.com/towerz/clappr-youtube-playback
Googel IMA Pre Roll Ready Yes https://github.com/kslimani/clappr-google-ima-html5-preroll
VAST Ad plugin WIP No https://github.com/vix-simplex/clappr-ad-plugin
Dynamic Overlay Ready Yes https://github.com/Lethea/clappr-dynamic-text-overlay
Scroll Text Overlay Ready Yes https://github.com/Lethea/clappr-marquee-overlay
Playback Speed Controller Ready Yes https://github.com/Lethea/clapper-playback-speed-plugin-extended
FLV Ready Yes https://github.com/andrefilimono/clappr-flvjs-playback
Context Menu Ready Yes https://github.com/joaopaulovieira/clappr-context-menu-plugin

External Integrations

Integration Status Compatible with latest Clappr URL
P2P Media Loader Ready Yes https://github.com/Novage/p2p-media-loader

:film_strip: Supported Formats

IE10 rtmp
IE11 rtmp rtmp rtmp
Microsoft Edge ? ? rtmp rtmp ? rtmp
Firefox rtmp rtmp rtmp rtmp
Chrome rtmp rtmp rtmp
Safari rtmp rtmp rtmp rtmp
Android rtmp rtmp rtmp
WiiU Browser ? rtmp rtmp ?
PS4 Browser ? rtmp rtmp ?

rtmp means that the support is made by an external plugin.

:play_or_pause_button: About Autoplay

Clappr has no control over autoplay Browser Policy.

Therefore, we're not able to execute play and unmute actions sequentially in every situation. There are a series of scenarios where the Browser blocks these actions based on it’s own policy.

Each browser has their own different restrictions, and the usual behavior is to activate the sound only after an user interaction with the player.

For more infos about auto play video policy, you can read these docs:

:interrobang: FAQ & Troubleshooting

How to write a plugin?

See the wiki for more info.

How can I disable or override a plugin?

Let's say you want to disable or override a plugin.

Disable a plugin

// let's disable the loading animation (the 'spinner' plugin)
var player = new Clappr.Player({ ... });
// after attach

Override a plugin

// let's disable the loading animation (the 'spinner' plugin)
export default class NoSpinner extends UIContainerPlugin {
  get name() { return 'spinner' }
new Clappr.Player({ plugins: [NoSpinner]})

How can I use clappr with ReactJS?


How can I use clappr with ionic/angular?


How can I Log messages with Clappr?

Add this snippet before you instantiate the player Clappr.Log.setLevel(0)

Common steps to verify issues

Very often people open issues related to stream not working, freezing, glitching, stopping, and so on. You can try the steps below, taking notes about the results:

  • try to run the same example at CDN
  • check the cors headers at your servers
  • try to run it on hls.js demo page
  • try to run it on flashls. demo page
  • try to run on your page the following source: http://www.streambox.fr/playlists/x36xhzz/x36xhzz.m3u8
  • try different browsers/OS's to see if the problems remain
  • try to use a tool to check the health of your stream (both input, ie: RTMP, and segmentation, ie: DASH or HLS): like mediainfo (for instance you could: mediainfo http://www.example.com/my.m3u8, Apple's mediastreamvalidator too, hls-analyzer and etc.
//HLS-Analyzer usage example

pip install m3u8
git clone https://github.com/epiclabs-io/hls-analyzer.git
cd hls-analyzer
python hls-analyzer.py http://www.streambox.fr/playlists/x36xhzz/x36xhzz.m3u8

How to handle player fatal errors?

Player fatal errors can be handled using onError API event.

var player = new Clappr.Player({
  parent: '#myplayer',
  source: 'http://path.to/my/video.mp4',
  events: {
    onError: function(e) {
      // Here the code to handle the error

Note: the type of error event object depends on the type of the playback component resolved to play the video.


This is a simple example using the no_op playback to display error messages.

You can try the following Javascript code on Clappr demo page:

var playerElement = document.getElementById("player-wrapper");

var r = 3; // Retry attempts

var player = new Clappr.Player({
  // source: 'http://clappr.io/highline.mp4',
  source: 'http://clappr.io/bad_highline.mp4',
  disableErrorScreen: true, // Disable the internal error screen plugin
  height: 360,
  width: 640,
  events: {
    onError: function(e) {
      var s = player.options.source;
      // Replace previous line by the following line to simulate successful recovery
      // var s = (r > 2) ? player.options.source : 'http://clappr.io/highline.mp4';
      var t = 10;
      var retry = function() {
        if (t === 0) {
          var o = player.options;
          o.source = s;
        setTimeout(retry, 1000);
        autoPlay: true,
        source: 'playback.error',
        playbackNotSupportedMessage: 'Network fatal error.' + ((r > 0)
            ? ' Retrying in <span id="retryCounter"></span> seconds ...'
            : ' All retry attempts failed'),
      if (r > 0) {


Another example

This example use a custom error container plugin to display error messages.

You can try the following Javascript code on Clappr demo page:

var playerElement = document.getElementById("player-wrapper");

var ErrorPlugin = Clappr.ContainerPlugin.extend({
  name: 'error_plugin',
  bindEvents: function() { this.listenTo(this.container, Clappr.Events.CONTAINER_ERROR, this.onError) },
  hide: function() { this._err && this._err.remove() },
  show: function() {
    var $ = Clappr.$
    var txt = (this.options.errorPlugin && this.options.errorPlugin.text) ? this.options.errorPlugin.text : 'A fatal error occured.';
    this._err = $('<div>')
        'position': 'absolute',
        'z-index': '999',
        'width': '100%',
        'height': '100%',
        'background-image': 'url(' + this.background + ')',
        'background-size': 'contain',
        'background-repeat': 'no-repeat',
        'padding-top': '15%',
        'text-align': 'center',
        'font-weight': 'bold',
        'text-shadow': '1px 1px #fff',
          'font-size': '200%',
      .append($('<p>').html('Retrying in <span class="retry-counter">10</span> seconds ...')
          'font-size': '120%',
          'margin': '15px',
    this.container && this.container.$el.prepend(this._err);
  onError: function(e) {
    if (!this.container) return;
    var tid, t = 10, retry = function() {
      if (t === 0) {
        if (this.options.errorPlugin && this.options.errorPlugin.onRetry) {
        } else {
      tid = setTimeout(retry, 1000);

var player = new Clappr.Player({
  disableErrorScreen: true, // Disable the internal error screen plugin
  source: 'http://clappr.io/bad_highline.mp4',
  plugins: [ErrorPlugin],
  errorPlugin: {
    // text: 'My custom error message.',
    onRetry: function(e) {
      // simulate successful recovery
      // or decide here what to do between each retry
        source: 'http://clappr.io/highline.mp4',
        autoPlay: true,
  height: 360,
  width: 640


:rocket: Companies using Clappr


:raised_hands: Contributors

This project exists thanks to all the people who contribute.

:star2: Sponsor