Kutools AI Proofread in Word: Check Grammar with AI Suggestions

Proofreading a Word document line by line can take time, especially when you need to check grammar, spelling, punctuation, repeated words, and wording issues before sharing or publishing the file. Kutools AI Proofread helps you review faster by marking possible issues with underlines in the document and showing AI suggestions in the Proofread tab in the Real-Time Assistant pane.

You can scan the entire document, view the issue count, and review each underlined issue in context. Click an underlined issue to open a quick suggestion popup, or select a suggestion in the pane to locate the matching text in the document. Then choose Accept, Dismiss, or Always Ignore. You can also adjust the marking style and control whether Proofread scans the whole document automatically on start.

• What is Kutools AI Proofread?
• Key benefits of Kutools AI Proofread
• Connect an AI service before using Proofread
• How to use Kutools AI Proofread in Word
• Proofreading options and settings
  • Change the underline marking style
  • Turn Scan Entire Document on Start on or off
• FAQ

What is Kutools AI Proofread?

Kutools AI Proofread is an AI-powered proofreading feature in Kutools for Word. It helps check Microsoft Word documents for possible grammar, spelling, punctuation, capitalization, repeated-word, and wording issues.

The feature works in a connected proofreading workflow: it detects possible issues, marks the related text with underlines, shows the issue count and AI suggestions in the Proofread tab in the Real-Time Assistant pane, and displays a suggestion popup when you click an underlined issue in the document.

• Detect: Find possible writing issues in a Word document.
• Mark: Underline the related text directly in the document.
• Preview: Click an underlined issue to show a suggestion popup next to the text.
• Suggest: Show detailed AI correction suggestions in the Proofread tab.
• Sync: Keep the selected issue in the document and the matching suggestion in the pane connected.
• Fix or ignore: Use Accept, Dismiss, or Always Ignore to handle each suggestion.

Key benefits of Kutools AI Proofread

AI Proofread is designed to make document review clearer, faster, and easier to follow. It connects each detected issue with the exact underlined text in the document, so you can review suggestions in context before applying changes.

• ✓See issues directly in the document: Possible grammar, spelling, punctuation, and wording issues are marked with underlines, so you can quickly locate them.
• ✓Review suggestions beside the text: Click an underlined issue to open a suggestion popup with details and action buttons.
• ✓View all issues in the Proofread tab: The Proofread tab in the Real-Time Assistant pane shows detected issues, AI suggestions, and the total issue count.
• ✓Move between the document and pane: Click an underlined issue or a pane suggestion to jump to the matching result in the other view.
• ✓Handle suggestions flexibly: Use Accept, Dismiss, or Always Ignore depending on whether the suggestion should be applied or ignored.
• ✓Support full-document and real-time proofreading: Scan the entire document at once, check the current sentence while writing, and adjust the underline Marking Style as needed.

Connect an AI service before using Proofread

Before you can proofread a Word document with AI Proofread, Kutools for Word must be installed and an AI service must be connected. The following steps show how to open Proofread for the first time and configure the AI settings, so the feature can generate correction suggestions for grammar, spelling, punctuation, and wording issues.

1. Open Microsoft Word after installing Kutools for Word.
2. Click Kutools > Proofread.
3. If the AI settings have not been configured, the AI Settings dialog box will appear.
4. Choose an AI provider, enter the corresponding API key, select the AI model, and save the settings.
   

How to use Kutools AI Proofread in Word

This section shows the complete workflow for proofreading a Word document with Kutools AI Proofread. You can open the feature, scan the document, check underlined issues, view suggestion popups in the document, review the issue count in the pane, and decide whether to accept, dismiss, or always ignore each suggestion.

Step 1: Open AI Proofread

Open the Word document you want to proofread. Then click Kutools > Proofread. The Real-Time Assistant pane will open on the right side of the document, with the Proofread tab selected.

Step 2: Scan the document

If Scan Entire Document on Start is enabled, AI Proofread automatically scans the whole document when the Proofread feature starts. This option is enabled by default after installing Kutools.

After the scan is complete, possible writing issues are marked with underlines in the document and listed in the Proofread tab. The pane also shows the total number of detected issues, such as Proofread (10).

Step 3: Review underlined issues and issue count

AI Proofread shows proofreading results in two connected ways:

• In the document: Possible issues are marked with underlines. Click an underlined issue to open a suggestion popup beside the text, where you can view the suggested correction, issue type, and action buttons.
• In the Proofread tab: The Proofread tab lists detected issues, AI suggestions, and the total issue count. If not all issues are visible at once, use the scroll bar to view more suggestions.

The document and the Proofread tab stay synchronized. Click an underlined issue in the document to move to the matching suggestion in the tab, or click a suggestion in the tab to locate the corresponding underlined text in the document.

Step 4: Accept, Dismiss, or Always Ignore suggestions

For each proofreading suggestion, choose the action that best fits your document. You can use these buttons from the suggestion popup in the document or from the matching suggestion in the Proofread tab.

• Accept: Apply the suggested correction to the document.
• Dismiss: Ignore the current suggestion this time.
• Always Ignore: Always ignore this suggestion in future proofreading results.

Proofreading options and settings

AI Proofread also provides options for controlling how proofreading marks are displayed and whether the whole document is scanned automatically when the feature starts.

Change the underline marking style

AI Proofread marks detected issues with underlines in the Word document. If you want the marks to be more noticeable or better match your review preference, you can change the underline style.

1. On the Kutools tab, click the drop-down arrow next to Proofread, and then select Marking Style.
   
2. In the Marking Style dialog box, select a common color or enter a custom Color HEX value, adjust the line thickness and transparency, and check the preview.
   

The marking style only changes how proofreading marks appear in the document. It does not change the document text or apply any correction automatically. You can still click an underlined issue to view the suggestion popup, and the matching suggestion remains available in the Proofread tab.

Turn Scan Entire Document on Start on or off

Scan Entire Document on Start controls whether AI Proofread automatically scans the whole document when the feature starts. After installing Kutools, this option is enabled by default.

To turn this option on or off, go to the Kutools tab, click the drop-down arrow next to Proofread, and select Scan Entire Document on Start.

Scan Entire Document on Start controls the scan scope when real-time proofreading is activated.

• When enabled: AI Proofread scans the entire document immediately when Proofread starts. This is useful when you want a clear, one-time review of all possible issues in the document.
• When disabled: AI Proofread does not scan the whole document on start. Instead, it checks only the paragraphs you edit or navigate to in real time. This is recommended for long documents to maintain performance and avoid slowdowns.

FAQ

Here are answers to common questions about using Kutools AI Proofread in Word.

What can Kutools AI Proofread check in Word?

Kutools AI Proofread can help check grammar, spelling, punctuation, capitalization, repeated words, and wording issues in a Word document. It marks possible issues with underlines, shows a suggestion popup when you click an underlined issue, and lists suggestions in the Proofread tab in the Real-Time Assistant pane.

How do I use Kutools AI Proofread in Word?

Open your Word document, click Kutools > Proofread, and let AI Proofread scan the document. Then review the underlined issues in the document or the issue list in the pane. For each suggestion, choose Accept, Dismiss, or Always Ignore.

What do the underlines mean in AI Proofread?

The underlines mark text that AI Proofread identifies as a possible writing issue. Click an underline to open a suggestion popup beside the text. The document text is changed only when you accept a suggestion.

What happens when I click an underlined issue in the document?

When you click an underlined issue, AI Proofread shows a suggestion popup next to the related text. The popup displays the suggested correction, the issue type, and action buttons such as Accept, Dismiss, and Always Ignore. The Proofread tab in the Real-Time Assistant pane also moves to the matching suggestion.

Are the document marks and the side pane synchronized?

Yes. Clicking an underlined issue in the document moves the pane to the matching suggestion. Clicking a suggestion in the Real-Time Assistant pane locates the corresponding underlined text in the document.

What does the issue count show?

The issue count shows how many possible proofreading issues were detected in the current result. If you edit the document, click Recheck to update the count. If not all issues fit in the pane, use the scroll bar to view more suggestions.

What is the difference between Accept, Dismiss, and Always Ignore?

Accept applies the suggested correction. Dismiss ignores the current suggestion this time. Always Ignore always ignores this suggestion in future proofreading results.

What is Scan Entire Document on Start?

Scan Entire Document on Start is an option that lets AI Proofread automatically check the whole document when the Proofread feature starts. It is enabled by default after installing Kutools.

Can I change the underline style used by AI Proofread?

Yes. Click the drop-down arrow next to Kutools > Proofread, and then click Marking Style to change the underline marking style.

Summary

Kutools AI Proofread gives Word users a clearer way to check and improve document quality. It detects possible writing issues, marks them directly in the document with underlines, shows suggestion popups beside selected issues, displays the issue count, and lists AI suggestions in the Proofread tab in the Real-Time Assistant pane. Because the document marks and side pane are synchronized, you can move between the document and the suggestion list easily. With Accept, Dismiss, Always Ignore, Marking Style, automatic full-document scanning, and real-time sentence proofreading, you can review Word documents more efficiently and confidently.