nihongo-e-na.com/jpn/site/tag/%E3%83%84%E3%83%BC%E3%83%AB/
A directory of 14 web-based tools and applications for studying Japanese, including flashcard systems, writing evaluation, reading support, and dictionaries, organized by skill level.
Resource lists and enginesApps and toolsIn JapaneseAppsSpaced repetitionDictionariesHandwritingHiragana