Best for: Reading Japanese novels in the browser
Free online e-book reader for Japanese EPUBs, built to work with pop-up dictionaries like Yomitan, with vertical text and reading progress tracking.
NHK news rewritten in simpler Japanese with furigana and audio, aimed at learners and children.
Graded Japanese stories and articles with native audio, adjustable furigana and explanations of the grammar used. Some content is free; full access is paid.
Aozora Bunko: a free online library of Japanese books in the public domain, mostly older literature.
