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Work · July 14, 2026

Kaku

Write Japanese with confidence.

Kaku launched on July 14, 2026 with 5 votes, #4,557 of 24,623 launches that month and more than 75% of that year's launches.

Visit kaku.pro ↗Kaku alternativestop 19% of July 2026

What it does

Kaku fixes grammar, particles, and keigo in every desktop app, right where you type, and tells you why. When you ask, it also improves rough drafts, changes tone, or translates into natural Japanese.

Kaku checks your Japanese grammar, particles, and keigo on your device, explains why, and works in every desktop app. Free to start.

Kaku fixes grammar, particles, and keigo in every desktop app, right where you type, and tells you why. When you ask, it also improves rough drafts, changes tone, or translates into natural Japanese. More polite for a business email — use 謙譲語 with a senior colleague. Finish a Japanese sentence and Kaku checks grammar, particles, vocabulary, and keigo locally. It appears only when something deserves your attention. Select the passage, choose what you want Kaku to do, and review the result before your original changes. Tone Converter rewrites Japanese for the social moment, using surrounding text and app context when available—without asking you to engineer a prompt. Clear explanations,…from kaku.pro

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