AI Grammar Checker
Check and fix grammar, spelling, and punctuation errors instantly
Draft
Text to Check
0 / 50,000 characters
Quick Starts
Apply a proven preset, then fine-tune the settings.
Continue with
Keep the workflow moving with a closely related next action.
Settings— Adjust the output style before running the AI tool.
0 = no limit
Privacy & Trust
Privacy & Trust
History stays local
Successful runs are saved in this browser for quick reuse.
Verified guest access
Signed-out requests require verification before an AI call is sent.
Flexible export
Copy results instantly or download them as plain text or Markdown.
Run the workspace
Generate a fresh result, then compare it with earlier drafts below.
Recent Results
Reopen a previous run or reuse a successful setup without starting over.
Successful AI runs are saved in this browser for quick reuse.
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How to Use
Upload Your PDF
Drag and drop a PDF file. Text is extracted right in your browser — nothing is uploaded.
AI Processes Your Document
Our AI reads and analyzes the content to give you a clear, actionable result.
Review and Copy
Read the AI-generated result, copy it, or try again with different settings.
Why Use This Tool
100% Free
No hidden costs, no premium tiers — every feature is free.
No Installation
Runs entirely in your browser. No software to download or install.
Private & Secure
Your data never leaves your device. Nothing is uploaded to any server.
Works on Mobile
Fully responsive — use on your phone, tablet, or desktop.
AI Grammar Checking: How AI Improves Your Writing
Key Takeaways
- Modern AI grammar checkers go beyond spell-check to identify style, tone, and clarity issues.
- NLP models analyze sentence context to distinguish between homophones (their/there/they're) and other common errors.
- Grammar checkers can adapt to different writing styles: academic, business, creative, and casual.
AI-powered grammar checkers use natural language processing to analyze your writing for grammatical errors, stylistic issues, and clarity improvements. Unlike traditional spell-checkers, these tools understand context and can detect subtle mistakes like misplaced modifiers, subject-verb disagreement, and awkward phrasing.
200+
Types of writing issues detected
Common Use Cases
Professional Email
Ensure business correspondence is error-free and maintains an appropriate professional tone.
Academic Papers
Catch grammatical errors and improve academic writing style before submission.
Creative Writing
Identify inconsistencies in tense, voice, and style across longer creative works.
Non-Native Writing
ESL writers use grammar checkers as real-time tutors to improve language skills.
Practical Tips
Don't accept every suggestion blindly — AI may not understand intentional stylistic choices.
Set the target language variant (US English, UK English, etc.) for consistent spelling and punctuation.
Use the explanations provided with each correction to learn from your mistakes over time.
Run the grammar checker as a final step after completing your draft, not during the writing process.
All processing is performed locally in your browser using AI models. No data is uploaded to external servers unless explicitly stated.