Stay inside the book, not inside a stack of lookup apps

Mekuru combines Japanese-first reading layouts with offline dictionaries and vocabulary capture. Your EPUB books, manga, dictionaries, and reading progress stay together in one focused reader.

See Mekuru in action

From reading to flashcards in a few taps

Mekuru showing an offline JMdict definition after text is selected in a vertical Japanese EPUB — Instant offline dictionary lookup

A Japanese EPUB displayed in Mekuru's vertical tategaki reading layout — Vertical Japanese EPUB reading

Mekuru selecting OCR text on a Mokuro manga page and displaying an offline definition — Manga OCR with Mokuro Give My Regards to Black Jack / SHUHO SATO

Mekuru vocabulary list with a saved Japanese word, definition, and source sentence — Save words with their source sentences

One Japanese reading workflow

Everything you need to keep turning pages

Japanese EPUB Reader

Read vertical or horizontal text with right-to-left or left-to-right page flow, bookmarks, themes, and automatic progress restore.

Manga Reader

Import CBZ archives or Mokuro-processed manga with single-page, spread, and vertical-scroll modes.

Offline Dictionaries

Import Yomitan-compatible dictionaries or download JMdict, KANJIDIC, KanjiVG, and JPDB frequency data.

Smart Japanese Lookups

Tap text for compound-word detection, conjugation-aware definitions, pitch accents, frequency data, and kanji details.

Vocabulary and Anki

Save words with sentence context, export CSV files, or send flashcards directly to AnkiDroid.

Free and Open Source

Use the core reader for free. The source is available under AGPL-3.0, with an optional one-time Pro upgrade.

Less fumbling, more reading

Start reading Japanese on Android

Install from Google Play