Note

This is the documentation for the 1.1.0-DEV version of CasperJS. Find docs for 1.0 stable on the official website.

CasperJS documentation

CasperJS is a navigation scripting & testing utility for the PhantomJS (WebKit) and SlimerJS (Gecko) headless browsers, written in Javascript.

• Installation
  • Prerequisites
  • Installing from Homebrew (OSX)
  • Installing from git
  • Installing from an archive
  • CasperJS on Windows
  • Known Bugs & Limitations
• Quickstart
  • A minimal scraping script
  • Now let’s scrape Google!
  • CoffeeScript version
  • A minimal testing script
• Using the command line
  • casperjs native options
  • Raw parameter values
• Selectors
  • CSS3
  • XPath
• Testing
  • Unit testing
  • Browser tests
  • Advanced techniques
  • Test command args and options
  • Exporting results in XUnit format
  • CasperJS own tests
  • Extending Casper for Testing
• API Documentation
  • The casper module
  • The clientutils module
  • The colorizer module
  • The tester module
  • The utils module
• Writing CasperJS modules
• Events & filters
  • Events
  • Filters
• Logging
• Extending
  • Using CoffeeScript
• Debugging
  • Use the verbose mode
  • Hook in the deep using events
  • Dump serialized values to the console
  • Localize yourself in modules
  • Name your closures
• FAQ
  • Is CasperJS a node.js library?
  • I’m stuck! I think there’s a bug! What can I do?
  • The casper.test property is undefined, I can’t write any test!
  • I keep copy and pasting stuff in my test scripts, that’s boring
  • What is the versioning policy of CasperJS?
  • Can I use jQuery with CasperJS?
  • Can I use CasperJS without using the casperjs executable?
  • How can I catch HTTP 404 and other status codes?
  • Where does CasperJS write its logfile?
  • What’s this mysterious __utils__ object?
  • How does then() and the step stack work?
  • I’m having hard times downloading files using download()
  • Is it possible to achieve parallel browsing using CasperJS?
  • Can I access & manipulate DOM elements directly from the CasperJS environment?
  • Okay, honestly, I’m stuck with Javascript.
• Changelog
• Upgrading
  • Upgrading to 1.1
• Credits
  • Author
  • Contributors
  • Logo
• License

You can also search the Index if you’re looking for something particular.

Community

• get the code and contribute
• join the mailing list
• check out the ecosystem
• follow @casperjs_org on Twitter
• there’s also a Google+ account (not much updated though)