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    0.5.1 • Public • Published

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    cdnbye logo webrtc logo

    Speed up your website using WebRTC and ServiceWorker.

    npm jsdelivr

    SW P2P Engine creates a communal, distributed CDN with the latest HTML5 APIs — WebRTC to connect browsers, ServiceWorker to fulfill requests, IndexedDB to cache data, and WebCrypto to do it all securely. And it never impacts the user experience. Ever. This lightweight library uses only a small portion of spare bandwidth, imperceptible CPU, 150MB of browser cache.


    • WebRTC data channels for lightweight peer-to-peer communication with no plugins
    • Support most popular static assets such as js, css, image and audio.
    • Seamlessly fallback to normal server usage if a browser doesn't support WebRTC
    • Compatible with all CDNs. No service side changes required.
    • Efficient scheduling policies to enhance the performance of P2P streaming
    • Use IP database to group up peers by ISP and regions

    Browser Support

    WebRTC has already been incorporated into the HTML5 standard and it is broadly deployed in modern browsers. The compatibility of SwarmCloud depends on the browser support of WebRTC, Service Worker and IndexedDB.

    Compatibility Chrome Firefox Mac Safari Android Wechat/QQ Opera Edge iOS Safari IE
    Service Worker


    Register your Domain

    Register your domain at https://oms.cdnbye.com

    Secure your Site with HTTPS

    Secure your site with HTTPS, if it isn't already. HTTPS is required for Service Worker, which we'll set up in the next step.

    To secure your site with HTTPS, you can use Let's Encrypt for a free certificate and easy integration. See Let's Encrypt's starting instructions here to secure your site.

    Host Service Worker

    SwarmCloud's Service Worker is the magic sauce that powers P2P engine. Host SwarmCloud's Service Worker sw.js at the root of your domain, i.e., https://yourwebsite.com/sw.js. After an asset is cached, every device watches for future requests for that asset and automatically retrieves it from SwarmCloud's peer-to-peer network instead of the more expensive, slower origin server (over WebRTC instead of HTTP).
    You can customize configuration or use default one.

    Basic Usage

    Copy sw.js to your server and make it available at https://yourwebsite.com/sw.js.

    Advanced Usage

    See here

    Install P2P Engine

    Add P2P Engine script to the <head> element of home page. Again, you can customize configuration or use default one.

    Basic Usage

    Add one line of script to your website homepage index.html, this will setup p2p engine automatically with default configuration.

        <script src="https://cdn.jsdelivr.net/npm/swarmcloud-sw@latest?auto=true"></script>

    Note that the script parameter must be "auto = true".

    Advanced Usage

    See here

    Check if SwarmCloud works correctly

    Open Chrome Console, if it prints like "ServiceWorker registration successful with scope", that means SwarmCloud is already working.

    API and Configuration

    See API.md

    Open Source Sponsorship

    All non-profit sites such as open source projects and blogs can apply for permanent free use, please contact customer service to activate.

    Related Projects


    We have collected some frequently asked questions. Before reporting an issue, please search if the FAQ has the answer to your problem.

    Contact Us

    Email: service@cdnbye.com
    Telegram: @cdnbye
    Skype: live:86755838




    npm i swarmcloud-sw

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