Sites and apps similar to SketchyWebsite include ErrorGen, which is free and open source. Other options are Dr.Windows and The Message Box Toy. In total there are three sites and apps like SketchyWebsite for Windows and Linux.
The Error Message Generator (ErrorGen) is a simple program that generates customized error dialogs. The idea was inspired by a web-based error generator which created images of error boxes. This program, however, creates "real" error boxes that can be dragged around...
This program, actually disguised as a protection against something, is a joke program that will pop up fake error messages to unsuspecting users. The error messages buttons dont actually do anything. The duration can be set as to how often the error messages come up.
United States
A program to make phony message boxes. As everyone knows there are some error messages in Windows but nobody knows that you can create some fake error messages in Windows. There is a tool available for creating fake error messages called “The Message Box Toy”.
