Yahoo! Widgets，又称Yahoo! Widgets Engine，是Yahoo!所推出的一套Widget引擎，使用了JavaScript及XML等技术，可于Windows及Mac OS X上运行。借由此平台可开发出各式各样的Widget（一种主要应用在桌面的小工具），例如天气预报、即时新闻、动态相框等等。

Yahoo! Widgets的前身称为「Konfabulator」，原生于麦金塔操作系统，因为大受欢迎所以后来也推出了Windows的付费版本。Yahoo!因看好Konfabulator的发展潜力及市场价值，2005年7月25日将其购并，并改以免费软件形式推出。

Yahoo Widgets was a free application platform for Mac OS X and Microsoft Windows, specifically Windows XP, Vista, Win 7, Win 8 and Win 10. The software was previously called Konfabulator, but after being acquired by computer services company Yahoo in 2005 it was rebranded. The name Konfabulator was subsequently reinstated as the name of the underlying rendering engine. The engine uses a JavaScript runtime environment combined with an XML interpreter to run small applications referred to as widgets, and hence is part of a class of software applications called widget engines.