GenSpinner takes a sentence or two of standard spintax and generates all possible combinations.
Note that due to the exponential nature of spintax, GenSpinner limits the amount of spintax you can enter to a few sentences.
Trust me when I say that just a paragraph or two spintax can potentially generate millions if not billions of combinations.
Paste/Type your spintax
You can should check out my Spintaxer Tool for generating hyperlinks in spintax format.
And check out my What is Spintax article for a detailed description on spintax and its formats.