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Client Javascript code for Pilotfish, a toolkit for improving user experience
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Build Status

Pilotfish quality rating: 1.5 fish


This code is not production ready. Estimated launch is in late October. Pilotfish developers are practicing README driven development, so this documentation is being written before the code is actually done. :) To see the real state of the code, checkout the HISTORY. If the project interests you and you would like to be notified when the first release is ready, more info can be found on the website


Software should be intuitive, easy, and fun to use. Pilotfish is a user experience toolkit for web and application developers to build better user experiences.

Instead of re-writing these common user experience widgets for each platform over and over, pilotfish unifies this effort as a community driven project that pulls together the latest best practices in User Experience. Your users get a better experience, and you save time. See plugins for a list of the functionality you gain by using a User Experience Platform.

TL;DR: Pilotfish is bootstrap for User Experience, with a server-side platform too.


Can't I just do this on my own?

Sure, most experienced developers have created experiences like the ones you see here, at least once. Do you want to keep doing that over and over again, or use well-tested, high quality interactions?

Isn't this what jQueryUI does?

jQuery is client side only. Pilotfish provides a server-side component as well for a complete platform that enables services, analytics, and dynamic interactions for your users.

Do I have to use your server for the plugins that need server-side support?

No. While there is a highly available, scalable platform-as-a-service at You can also download/install the api code and host yourself. See alternate hosting options.

Does it work with jQuery, Prototype, Backbone, Underscore, jQuery UI, YUI, mooTools, dojo, etc.?

Pilotfish currently requires jQuery. We plan on supporting other frameworks soon. Let us know if you are interested in other frameworks, that will guide our priorities. The best way to do this is to file an issue. Pilotfish will not interfere with any other libraries.

That looks like a lot of functionality. Isn't the file huge?

Pilotfish uses a plugin driven architecture, so you only get the plugins you need. The pilotfish.min.js file is only 1.7K when minified/gzipped.

Why the name pilotfish?

A pilot fish is one of those little fish that hover around sharks and eat the parasites, creating a mutually beneficial relationship with the shark. Similarly, Pilotfish aims to work alongside your application to make it better.


To see a working sample site, head over to

Getting started

To use pilotfish, first include the base pilotfish file:

<script src="//"></script>

Then you include the javascript for which plugins you may want to use:

<script src="//"></script>

Depending on the plugin, some extra configuration may be required.

For the asynchronous version, see:

Alternate Hosting Options


Several core plugins are included with the platform, and there is also a community of developers that create plugins as they are needed.

Existing plugins

  • Recorder - records events to the analytics backend of your choosing
  • Blower - Automagically finds usability problems (makes your site suck less)

Have an idea for a plugin? We'd love to hear it. Please file an issue describing your idea.


Pilotfish currently depends on jQuery, at least version 1.4. If your site doesn't use jQuery please let us know which javascript library we need to support by filing an issue

Browser Compatibility

Pilotfish accepts the burden of browser compatibility testing, and we aim to make reasonable trade offs for compatibility versus complexity/bloat.

We currently to support all browsers that support JSON:

  • Chrome >= 4
  • Firefox >= 3.5
  • Internet Explorer >= 8
  • Safari (including iOS) >= 5

For older browsers that don't support required functionality, we aim to gracefully degrade - silently disabled without causing problems for the user.

If it is important for you to support older browsers, we recommend modernizr, which brings browsers up to snuff.

Alternate Hosting Options

Picking a specific version

While it is recommend you use the latest stable minified release of the javascript, you may also pick a different release state or lock to a specific version number. We use semantic versioning with major.minor.patch. Examples:

Self hosting

You may host the javascript files yourself if you like. Simply download them from any of these sources and put them on your servers.

Note that the server-side api, and web console are open source, you are free to download/install them and run them on your own server instead of using the Pilotfish hosted solution.

Github CDN

Google CDN


Yahoo CDN



We aim for you to use this inside your application, so we picked the least restrictive license we could find. MIT License - see LICENSE

Who is using Pilotfish?



Would you like to help out? We need:

See doc/helping to get started. See doc/development for guidelines on how to write code that gets included in the production release.


We want you to have a good experience, too. :)

Please check out the existing issues, and if you don't see that your problem is already being worked on, please file an issue

More information

  • The wiki (TODO)
  • The Pilotfish Discussion Group (TODO)
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