Grammar Corrector

AI-powered grammar correction with 4 modes (Grammar, Formal, Casual, Concise). Supports OpenAI and Google Gemini.

Grammar Corrector - AI-Powered Writing Assistant Transform your writing with intelligent grammar correction powered by OpenAI GPT-4o Mini or Google Gemini 2.5 Flash. Perfect for emails, documents, social posts, and any text that needs professional polish. 🎯 4 CORRECTION MODES: • Grammar - Fix errors while preserving your original style • Formal - Rewrite for professional or academic tone • Casual - Make it warm and conversational • Concise - Cut the fluff, keep what matters ✨ KEY FEATURES: ✓ Multi-Provider - Choose between OpenAI GPT-4o Mini or Google Gemini 2.5 Flash ✓ Persistent Text - Input and output are saved when you close the popup ✓ Dark Mode - Automatically follows your system preference ✓ Keyboard Shortcut - Cmd+Enter / Ctrl+Enter to correct instantly ✓ One-Click Copy - Copy corrected text with a toast confirmation ✓ 5000 Character Limit - Perfect for emails, posts, and documents ✓ Clean UI - Minimal, distraction-free design 🔒 PRIVACY & SECURITY: • No content scripts monitoring your browsing • No background workers or tracking • Zero data collection or analytics • API keys stored only in Chrome's local storage • Text sent to your chosen provider only when you click "Correct" • Open source - inspect the code yourself 💰 PRICING: The extension is FREE. You bring your own API key: • OpenAI GPT-4o Mini: ~$0.0002-0.0005 per correction (500 words) • Google Gemini 2.5 Flash: free tier available via Google AI Studio • With $5 OpenAI credit: approximately 10,000 corrections 📋 HOW TO USE: 1. Click the extension icon 2. Open settings (gear icon) and choose your provider 3. Enter and save your API key 4. Select a correction mode 5. Paste your text (up to 5000 characters) 6. Click "Correct" or press Cmd+Enter 7. Copy the corrected text OpenAI API keys: https://platform.openai.com/api-keys Google Gemini API keys: https://aistudio.google.com/app/apikey Perfect for students, professionals, writers, non-native English speakers, and anyone who wants error-free, polished writing. No tracking. No subscriptions. Just better writing.