Quick little gadget, not very flashy but does the job. Could be helpful to those who don't quite understand how BitAND/OR/etc work, or just for some experimenting/testing. code follows #cs # AutoIt bit operations visualiser v1 by Siao #ce # #include <GUIConstantsEx.au3> #include <EditConstants.au3> Opt("GUIOnEventMode", 1) ;~ Opt("MustDeclareVars", 1) Global $hGui, $cInput, $cResult, $cCalc, $cArrowDown, $cArrowUp, $cBtnDo, $cLbl Global $aArrowDown[16] =