# AI Grammar Checker for Text | IA Checker

Source: https://iachecker.com/ai-grammar-check
Site: IA Checker — https://iachecker.com

## Summary

Check pasted text for grammar, spelling and punctuation while keeping your voice. Available on Starter and higher plans.

## See every change, instantly.

Paste a draft or drop a PDF, Word file, image or note. The checker repairs grammar, spelling and punctuation across every format we accept, then shows what changed.

### Example review: A short follow-up email, corrected in context

**Corrected draft**

Hi Maya,

Could you send me Jason’s notes from yesterday’s meeting? I want to make sure we’re using the latest figures before the client call.

Thanks,
Noah

**Review — 3 explained changes**

- **Punctuation**: Jasons → Jason’s. Adds the possessive apostrophe to the name.
- **Punctuation**: yesterdays → yesterday’s. Marks the meeting as belonging to yesterday.
- **Grammar**: were using → we’re using. Uses the contraction for “we are,” not the past form of be.

## Correct the error, keep your voice.

The checker is designed to repair objective problems while keeping the document recognizably yours. It reads the surrounding sentence before returning a clean draft and an issue list.

### What it runs on

- **LanguageTool**: Optional rule-based diagnostics people already trust.
- **Advanced**: A contextual pass that reads the sentence before it changes it.

### What it checks

- Grammar and agreement
- Spelling and recognized shorthand
- Punctuation and typography
- Clear sentence-level mistakes

### What it aims to preserve

- Meaning, register and terminology
- The document’s existing language
- Paragraphs, lists and Markdown structure
- Links, code and placeholders

Always review proper names and specialist terminology before publishing.

## Faster when the fix is clear. Smarter when it needs another pass.

Advanced reads the sentence in context. You choose how deeply it reviews the draft, and can add LanguageTool as an optional source of deterministic diagnostics.

- **Faster** (Mode 01): Handles clear grammar, spelling and punctuation issues with a lighter pass.
- **Smarter** (Mode 02): Adds a more attentive pass for agreement, omitted words and sentences that need more context.
- **LanguageTool** (Optional diagnostics): Contributes rule-based signals when enabled and available. Advanced continues the review if it is unavailable.

## From rough draft to corrected copy.

A short workflow keeps the correction visible and leaves the final decision with you.

### 1. Paste or import

Add a draft directly or bring in a supported document from the composer.

### 2. Choose the depth

Use Faster for obvious fixes or Smarter for a more careful contextual pass.

### 3. Inspect and copy

Read the corrected text beside the issue explanations, then copy the draft when it is ready.

## FAQ

### What does the grammar checker correct?

It reviews grammar, spelling, punctuation, agreement, typography and clear sentence-level issues. The result includes a corrected draft and an explanation of the changes it found.

### Will it rewrite my style?

The correction pass is instructed to preserve meaning, register, terminology and structure rather than restyle correct sentences. Recognized conversational shorthand may be expanded, so review informal copy before using it.

### What is the difference between Faster and Smarter?

Faster uses a lighter pass for clear errors. Smarter adds another contextual pass for issues such as agreement, omitted words and punctuation that depends on the full sentence.

### What happens when LanguageTool is disabled or unavailable?

LanguageTool is an optional diagnostic source. Advanced can complete the correction on its own if you leave it off or if the service is unavailable.

### Can I check a document instead of pasting text?

Yes. The composer accepts supported document formats, with upload and text limits determined by your active plan. You can also try the built-in examples before checking your own draft.

## Related

- [AI Humanizer](https://iachecker.com/ai-humanizer): Reshape mechanical writing when the draft needs more than correction.
- [AI Translator](https://iachecker.com/ai-translator): Translate the corrected draft while keeping its context and terminology.
- [AI Detector](https://iachecker.com/ai-detector): Review AI-writing signals after the final edit.
- [Pricing](https://iachecker.com/pricing): Compare writing-tool access and document limits across plans.

## Limits

Detection results are indicators, not proof of authorship. False positives
are possible, particularly on short, edited or heavily formatted text. A
person should stay in the decision loop.

## Elsewhere on this site

- Pricing: https://iachecker.com/pricing
- Full index for assistants: https://iachecker.com/llms.txt