Kannada Wiktionary - A wiki-based Kannada-English dictionary project, to which users can add freely. - http://kn.wiktionary.org/
Hindi - Kannada Dictionary - A downloadable dictionary available from the Language Technologies Research Center, IIIT, Hyderabad. - http://ltrc.iiit.net/onlineServices/Dictionaries/Kan-Hin_DictDwnld.html
Kannadakasturi.com - An online Kannada - English and English - Kannada dictionary. Kannada words are entered in transliteration, and are displayed in Kannada script. Also includes a Sanskrit to Kannada dictionary. - http://www.kannadakasturi.com/