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Widget is a rather unfortunate term, since it has a generic meaning, but it covers a multitude of new technologies based around JavaScript, HTML, and plugin architectures. Unlike Web Browser Extensions, widgets typically work within some other application platform.

Application Platforms

  • Yahoo Widgets (formerly Konfabulator)
  • Microsoft Gadgets
  • Apple MacOS X Dashboard, Download Dashboard Widgets
  • Google Sidebar Plugins aresearchpaper
  • Google Homepage Modules
  • Opera Widgets. Although these depend on libraries from the Opera web browser, they run outside the browser.


JavaScript is a key development technology (programming language) for most widgets, as well as for some Web Browser Extensions.

Microformats - Widget Examples has some useful info.

Great Examples

  • Canton Public Library provides widgets for Windows Sidebar, Mac OSX Dashboard, iGoogle, and NetVibes