Find the tools in this link;
http://216.139.221.153/english/tools/tools.php
Personally I use these 3 which I think are useful:
Hyphenator
Make your queries about the correct way to hyphenate Spanish words.
example; tener = te-ner
Nummerical Engine
Tool to turn numbers to letters and vice versa.
example; 2006 = dos mil seis / dos mil seis= 2006
Lemmatizer
Finds the lemmas of a word.
example; tienen = tener