0.1.0 • Public • Published


    Build Status

    A standalone version of the readability library used for Firefox Reader View. Any changes to Readability.js itself should be reviewed by an appropriate Firefox/toolkit peer, such as @leibovic or @thebnich, since these changes will be automatically merged to mozilla-central.


    For outstanding issues, see the issue list in this repo, as well as this bug list:

    To test local changes to Readability.js, you can run your own instance of readable-proxy to compare an original test page to its reader-ized content.


    To parse a document, you must create a new Readability object from a URI object and a document, and then call parse(). Here's an example:

    var location = document.location;
    var uri = {
      spec: location.href,
      prePath: location.protocol + "//" +,
      scheme: location.protocol.substr(0, location.protocol.indexOf(":")),
      pathBase: location.protocol + "//" + + location.pathname.substr(0, location.pathname.lastIndexOf("/") + 1)
    var article = new Readability(uri, document).parse();

    This article object will contain the following properties:

    • uri: original uri object that was passed to constructor
    • title: article title
    • content: HTML string of processed article content
    • length: length of article, in characters
    • excerpt: article description, or short excerpt from content
    • byline: author metadata
    • dir: content direction


    Readability's parse() works by modifying the DOM. This removes some elements in the web page. You could avoid this by passing the clone of the document object while creating a Readability object.

    var documentClone = document.cloneNode(true); 
    var article = new Readability(uri, documentClone).parse();   


    To run the test suite:

    $ mocha test/test-*.js

    To run a specific test page by its name:

    $ mocha test/test-*.js -g 001

    To run the test suite in TDD mode:

    $ mocha test/test-*.js -w

    Combo time:

    $ mocha test/test-*.js -w -g 001


    Benchmarks for all test pages:

    $ npm run perf

    Reference benchmark:

    $ npm run perf-reference


    Copyright (c) 2010 Arc90 Inc
    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.




    npm i readability-node

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