Set of interesting links and resources for NLP in Slovak language:
https://github.com/essential-data
http://nlp.web.tuke.sk/nlpform
http://vi.ikt.ui.sav.sk/Projekty
https://github.com/hladek/slovak-lexer
https://github.com/languagetool-org/languagetool
http://stanfordnlp.github.io/CoreNLP/
https://opennlp.apache.org/documentation/1.6.0/manual/opennlp.html
I will be slowly categorizing all the resources and making reviews for available tools.