Mooon

Japanese novels, papers, and manga often use vertical writing, columns, or a mix of both, and that variety is exactly what makes them awkward to read on a screen without converting the layout first. Mooon converts these layouts into clean horizontal text, so you can read or edit the content in a normal document view. Enhanced Mode is built for exactly this kind of complex layout. It runs slower than General Mode.

Mooon adds pronunciation guides to kanji and loanwords throughout a document or a manga page, which matters because beginners routinely get stuck on characters they can't read and lose the thread of a sentence while hunting for a dictionary. Paid plans make this unlimited across the whole file, while free users get a taste of it. For learners who stall on unreadable kanji, this removes the stop-and-look-up cycle. That cycle is what makes reading Japanese feel slow and tiring. It's a full Japanese OCR tool for scanned pages and manga panels, not just clean text files.

Translate an entire Japanese document at once, with the option to compare the translation against the original or replace the text outright. Think of it as Japanese PDF translation plus side-by-side checking in one pass. On a Starter plan and up, translation is unlimited, so a full novel or paper isn't out of reach. The comparison view matters when you want to check a specific phrase rather than trust the machine blindly.

The manga engine extracts speech-bubble dialogue, lets you copy and edit it, annotates the kanji inside, and translates the whole volume, which means you can move through a full chapter without jumping between apps for lookup and translation. In short, it's a manga translator that also keeps the original in view. You can also have bubbles read aloud in natural Japanese. It's a separate workflow from document handling, built around the way manga actually lays out text.

Mooon converts extracted text into audio using natural Japanese voices, turning a document into an audiobook. That's Japanese text to speech for a whole file, not just a sentence. Paid plans add AI voices and unlimited full-text reading, and the browser extension can read web pages too. This is the part that helps with listening practice, not just reading.

A companion browser extension adds furigana to any web page, highlights JLPT vocabulary from N5 up to N1, and offers translation and explanation tools. What if you just want to read a news article without a dictionary tab open? That's the gap this fills. The free version limits translation to 5 uses a day and restricts vocabulary extraction. Paid tiers remove those caps.

You choose between General Mode, which is faster and suits most horizontal files, and Enhanced Mode. The second is slower but better at complex layouts like vertical text. Both modes count the same against your quota, so the choice is purely about speed versus accuracy.