GoldenDict - The program has the following features: Use of WebKit for an accurate articles' representation, complete with all formatting, colors, images and links.
zkanji - zkanji is a free and open-source study tool and dictionary of the Japanese language.
Lingoes - Lingoes is an easy and intuitive dictionary and text translation software.
Jisho - Powerful and easy-to-use online Japanese-English dictionary with words, kanji and example...
Google Translate - Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.
RomajiDesu - RomajiDesu is a free online bi-directional Japanese-English dictionary, Kanji dictionary, Sentence analyzer and Japanese to Romaji/English translator, and Romaji to Hiragana/Katakana Converters for Japanese learners.