Web Scraper

Web Scraper is a chrome browser extension and a library built for data extraction from web pages. Using this extension you can create a plan (sitemap) how a web site should be traversed and what should be extracted. Using these sitemaps the Web Scraper will navigate the site accordingly and extract all data. Scraped data later can be exported as CSV.

To use it as an extension install it from [Chrome store] chrome-store

To use it as a library do npm i web-scraper-headless

Features

1. Scrape multiple pages
2. Sitemaps and scraped data are stored in browsers local storage or in CouchDB
3. Multiple data selection types
4. Extract data from dynamic pages (JavaScript+AJAX)
5. Browse scraped data
6. Export scraped data as CSV
7. Import, Export sitemaps
8. Depends only on Chrome browser

Help

Documentation and tutorials are available on webscraper.io webscraper.io

Ask for help, submit bugs, suggest features on [google groups] google-groups

Submit bugs and suggest features on [bug tracker] github-issues

Headless mode

To use it as a library you need a sitemap, for example exported from the app.

const webscraper = require('webscraper-headless')
const sitemap = {
  id: 'test',
  startUrl: 'http://test.lv/',
  selectors: [
    {
      'id': 'a',
      'selector': '#scraper-test-one-page a',
      'multiple': false,
      type: 'SelectorText',
      'parentSelectors': [
        '_root'
      ]
    }
  ]
}
const options = {} // optional delay and pageLoadDelay
webscraper(sitemap, options)
    .then(function (scraped) {
        // This is your scraped info
    })

Bugs

When submitting a bug please attach an exported sitemap if possible.

License

LGPLv3

Changelog

v0.2

• Added Element click selector
• Added Element scroll down selector
• Added Link popup selector
• Improved table selector to work with any html markup
• Added Image download
• Added keyboard shortcuts when selecting elements
• Added configurable delay before using selector
• Added configurable delay between page visiting
• Added multiple start url configuration
• Added form field validation
• Fixed a lot of bugs

v0.1.3

• Added Table selector
• Added HTML selector
• Added HTML attribute selector
• Added data preview
• Added ranged start urls
• Fixed bug which made selector tree not to show on some operating systems