You can watch animations showing how the kanji came about. There are mnemonic hints which relate the kanji's components to the kanji's meaning. Imiwaa multilingual Japanese dictionary for iPhone and iPod touch devices.
To search using romaji, please use the Advanced Search. GeekJDicta text-mode Japanese dictionary with powerful input and lookup capabilities. Last update Tanoshii Japanesea site dedicated to making the learning of the Japanese language a fun and enjoyable experience.
You can search from a total of kanji. It is free, but there are certain system requirements necessary to use it.
OBenkyoan android application to study hiragana, katakana and kanji.