I use Shadermap 2, it's not free but awesome and perhaps it's still interesting.
http://shadermap.com/home/
http://shadermap.com/home/
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Show posts Menu/////Mein erstes Tool
PRINT "Hallo Welt!" ,100,100
Local a = RND(50) //Hier a als lokale Variable deklarieren... LET ist glaube ich eh veraltet.
SHOWSCREEN
MOUSEWAIT
END