David Mohl

Fix My Japanese - Fix your Japanese grammar. Understand your mistakes

The most comprehensive AI tool for Japanese learners and pros. Real-time grammar correction with detailed explanations, dialect support (Kansai-ben!), and native apps for iOS and macOS. Don't just fix it—master it.

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David Mohl
Hi all! I built the first version of Fix My Japanese a few years ago. I was working in a Japanese business context and felt stuck because my local friends and colleagues were too polite to correct my grammar, so I never actually knew what I was doing wrong. Japanese is a language of tiny, vital nuances. A single missing particle or a slightly off-tone verb can completely change how you are perceived. I realized that a simple "correction" wasn't enough; I needed to understand the "Why." What started as a personal tool long before the ChatGPT era has now evolved into a specialized AI-powered platform used by hundreds of people every day. Our goal isn't just to fix your text, but to act as a linguistic coach that explains the nuance behind every suggestion. Key Features: * Context-Aware: Choose between Casual, Polite, or Keigo (and even Kansai-ben!) to match your situation. * The "Why": Detailed, per-line explanations so you actually learn from your mistakes. * Native Everywhere: Use the free web version or the native iOS app (with CloudKit sync). I’d love to hear your thoughts! For those of you learning or living in Japan: What’s the one Japanese grammar point that still trips you up? I'd love to see if our AI assistants can help you clear it up!