GrammarGenius Pro

About

GrammarGenius Pro fixes your grammar, tone, and spelling 
instantly — powered by free AI, with no subscription, no 
server, and no data collection.

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💬 MESSAGE MODE
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Built for WhatsApp, Slack, Twitter, SMS, and any 
short-form text.

- Fix Message — corrects grammar, spelling & punctuation
- Shorten — trims to the essential point
- Expand — adds detail and enriches phrasing
- Alternatives — gives 2 rephrased versions to pick from
- Changes Made — shows every correction applied, diff-style

Tones: Casual · Formal · Friendly · Assertive

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📧 EMAIL MODE
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Built for Gmail, Outlook, and professional correspondence.

- Fix Email — full grammar, tone & structure correction
- Rewrite — same intent, better phrasing, from scratch
- Shorten — condenses without losing the message
- Subject Line — AI-suggested subject generated instantly
- Smart Reply — suggested reply based on email context

Tones: Casual · Formal · Friendly · Assertive · Apologetic

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🤖 3 FREE AI PROVIDERS — AUTO FALLBACK
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Use any of three free AI providers — Groq, Google AI 
Studio, or GitHub Models. Set your priority order. If one 
fails or rate-limits you, the next kicks in automatically.

One free API key is all you need to get started.

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🔒 PRIVACY FIRST
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- Only one permission needed: storage
- No analytics, no telemetry, no tracking
- Your text goes only to the AI provider you configured
- API keys are stored locally and never leave your browser
- No account. No subscription. No data collection.

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✨ MORE FEATURES
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- Dark and light theme
- History panel — reload and re-fix previous inputs
- 10,000 character input with live counter
- Robust fallback — handles rate limits automatically
- Zero build step — lightweight and fast