Best free rewriting program ???

I need a good and free rewriting program. Can you please help me with this ?

i know some good ones but they arent really free how about a simple Thesaurus, or microsoft word,and with all of them its better to check the results out urself in the end.

rewriting software are a bunch of bollocks as all i tried is unreadable to human and will make you make your site unprofessional. Editing them will be so tedious that writing a new article is so much faster.

the best tool i used so far will be wordflood, but its semi auto as i still have to choose the right synonyms and rearrange the articles which suits me fine.

yah, seems like semi-auto are the best ones