Weebly is an online, free widget-based Web site creator, funded by micro-seed fund Y Combinator. It uses a widget style format, allowing users to create pages with only a few clicks by dragging and dropping different page elements (images, text, or interactive content, etc.) onto a page and filling in the content. It competes with Yola (formerly Synthasite), Jimdo, Webs, uCoz, Wix, and other web hosting and creation sites.The site was originally created by David Rusenko, Dan Veltri, and Chris Fanini, all of whom attended Penn State for an undergraduate degree.It was named by Time Magazine as number four of the fifty best websites of 2007.

In June 2008, Weebly added the Weebly pro accounts feature, allowing users to create password-protected pages and upgrade file size limits, as well as receive additional support services.As recently as October 2008, Weebly has become compatible with Safari and Google Chrome in addition to its existing compatibility to Internet Explorer and Firefox.