MojiMori is an online Japanese-learning resource built around a searchable kanji dictionary and structured study tools. Its database covers 2,136 jōyō kanji, organized by the school grades in which Japanese students learn them. Learners can search by character, meaning, reading in kana or romaji, or hexadecimal codepoint, and explore details such as stroke order, components, vocabulary, and grade level. The site also offers resources for radicals, graphemes, hiragana, katakana, words, idioms, grammar, and survival Japanese, alongside study lessons, mini-games, and personal learning features.

MojiMori helps users turn dictionary lookups into ongoing practice through spaced repetition, review activity, and progress tracking. Beginners can start with Grade 1, which includes 80 common characters and is available for free; access to other kanji grades requires a Pro plan. The website also provides pricing information, FAQs, feedback options, and multiple interface languages. Describing itself as “a kanji dictionary for nerds,” MojiMori is a focused tool for exploring Japanese writing and building kanji knowledge over time.