resources
JPDB.io: Dictionary, frequency list, (media based) spaced-repetition-system website, etc.
Free
Site
Dictionary
Tool
Vocabulary
Anki: A spaced-repetition-system app/tool
Kanji
Free
Tool
Vocabulary
App
Kenjisugimoto.com: Calligraphy styled-text generator website
Kanji
Free
Site
Tool
Hiragana & Katakana