Grammar Corrector
AI-powered grammar correction with 4 modes (Grammar, Formal, Casual, Concise). Supports OpenAI and Google Gemini.
As of June 2026, Grammar Corrector has 19 users and a 5.00/5 rating from 1 reviews in the Communication category.
Usersup 58.3 percent+58.3%
19
19
Ratingno change0%
5.00
1 reviews
Reviewsno change0%
1
Version
1.1.0
Manifest V3
90-day change · In the last 90 days this extension 1 version update, changed permissions.
History
8 snapshotsTracking since Apr 1, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 1, 2026 | 12 | 5.00 | 1 | 1.0.0 |
| Apr 16, 2026 | 13 | 5.00 | 1 | 1.1.0 |
| Apr 22, 2026 | 12 | 5.00 | 1 | 1.1.0 |
| Apr 27, 2026 | 11 | 5.00 | 1 | 1.1.0 |
| May 10, 2026 | 13 | 5.00 | 1 | 1.1.0 |
| May 15, 2026 | 17 | 5.00 | 1 | 1.1.0 |
| May 21, 2026 | 14 | 5.00 | 1 | 1.1.0 |
| Jun 3, 2026 | 18 | 5.00 | 1 | 1.1.0 |
| Now | 19 | 5.00 | 1 | 1.1.0 |
Changelog
- Apr 1, 2026description
Grammar Corrector - AI-Powered Writing Assistant Transform your writing with intelligent grammar and logic correction powered by OpenAI's GPT-4o Mini. Perfect for emails, documents, social posts, and any text that needs professional polish. 🎯 WHAT IT CORRECTS: • Grammar & Mechanics - Spelling, punctuation, syntax errors • Logical Flow - Contradictions, unclear reasoning, missing steps • Sentence Structure - Readability and coherence improvements • Context & Clarity - Natural idea flow that makes sense • Consistency - Tense, perspective, and style throughout • Word Choice - Awkward or incorrect word usage • Tone Preservation - Keeps your original meaning and voice ✨ KEY FEATURES: ✓ Simple & Clean - Minimalist black & white design, no distractions ✓ GPT-4o Mini Powered - Smart corrections at 10x lower cost than GPT-3.5 ✓ Privacy First - No tracking, no content scripts, only your API key stored ✓ Inline Feedback - No annoying popups, subtle error messages ✓ 5000 Character Limit - Perfect for emails, posts, and documents ✓ One-Click Copy - Quick copy button for corrected text ✓ Fast Response - 2-3 second correction time 🔒 PRIVACY & SECURITY: • No content scripts monitoring your browsing • No background workers or tracking • Zero data collection or analytics • API key stored only in Chrome's local storage • Text sent to OpenAI only when you explicitly click "Correct Grammar" • Open source - inspect the code yourself 💰 PRICING: The extension is FREE. You need your own OpenAI API key: • GPT-4o Mini: ~$0.0002-0.0005 per correction (500 words) • With $5 credit: approximately 10,000 corrections • New OpenAI accounts often get $5 free credit • 10x cheaper than GPT-3.5-turbo, smarter results 📋 HOW TO USE: 1. Get your OpenAI API key (https://platform.openai.com/api-keys) 2. Click the extension icon 3. Enter and save your API key 4. Paste your text (up to 5000 characters) 5. Click "Correct Grammar" 6. Copy the corrected text Perfect for students, professionals, writers, non-native English speakers, and anyone who wants error-free, logically sound writing. Made with respect for your privacy. No tracking. No subscriptions. Just better writing.
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. - Apr 1, 2026short_description
AI-powered grammar and logic correction using OpenAI
AI-powered grammar correction with 4 modes (Grammar, Formal, Casual, Concise). Supports OpenAI and Google Gemini.
- Apr 1, 2026host_permissions
(empty)
https://api.openai.com/, https://generativelanguage.googleapis.com/
- Apr 1, 2026permissions
storage
storage, clipboardWrite
Permissions & access
- Permissions
- storageclipboardWrite
- Host access
- https://api.openai.com/, https://generativelanguage.googleapis.com/
Screenshots
About
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.Technical
- Version
- 1.1.0
- Manifest
- V3
- Size
- 33.56KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- pfddaljjmodgcnbeocajhccjnegcobhc
- Developer ID
- u1a0f61038f8012a65ebb0f0d12f696df
- Developer Email
- [email protected]
- Created
- Oct 28, 2025
- Last Updated (Store)
- Mar 29, 2026
- Last Scraped
- Jun 9, 2026
- Website
- —
- Support URL
- —
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Data sourced from the Chrome Web Store · last verified Jun 9, 2026.