Grylan is a project mainly written in JAVA and PERL, it's free.
Rule-Based Grammar checker module for IceNLP
This is a part of a final project for an NLP course in Reykjavik University. The goal is to build a grammar checker for the Icelandic language using existing Open-Source tools (IceNLP).
Authors:
Málgrýlan (or Grýlan for short) is a Java module that uses IceNLP to parse and tag icelandic text, then it takes the tagged text and runs it through a set of predefined grammar rules. The output is either an ok
flag or a list of found errors (formatted according to a given BNF).