Want to spot changes between two Word files in seconds? Whether you’re a writer, editor, student, or professional, knowing how to compare two Word documents for differences can save you from version control headaches.
In this step-by-step guide, we’ll explore how to compare two Word documents for differences using built-in tools in Microsoft Word, Google Docs, and even free online alternatives. We’ll also cover how to compare two Word docs in Microsoft Word side by side and how to merge changes with ease.
Key Highlights:
Learn how to compare two Word documents for differences effortlessly.
Explore the best ways to compare two Word docs in Microsoft Word.
Use side-by-side comparison and merge features like a pro.
Discover free tools and online alternatives.
Bonus: Compare and merge documents in Google Docs too!
Table of Contents:
- How to Compare Two Word Documents for Differences
- How to Merge Word Documents in Microsoft Word
- How to Compare Two Word Documents Side by Side
- How to Compare Documents in Google Docs
- How to Merge Documents in Google Docs
- How to Compare Documents and Files Using Free Tools
1. How to Compare Two Word Documents for Differences (Step-by-Step)
If you’re wondering how to compare two Word documents for differences, the built-in Compare tool in Microsoft Word is your best friend.
Steps to Compare Two Word Docs in Microsoft Word:
- Open Microsoft Word.
- Click on Review in the top menu.
- Select Compare > Compare…
- In the popup window:
- Select your Original document
- Select your Revised document
- Click OK
Word will generate a third document showing all tracked changes, differences, deletions, and additions!
You’ve just learned how to compare two Word documents for differences in the simplest way possible.

2. How to Merge Word Documents in Microsoft Word
After comparing changes, you may want to merge Word documents to create a single, updated file.
How to Merge Two Word Documents:
- Open one of the documents in Word.
- Go to Review > Compare > Combine…
- Choose the documents to combine.
- Click OK to generate a merged version.
This is especially helpful if you’re working with editors or collaborators and want to combine suggestions into one clean document.
Learn more about Microsoft Word features directly from Microsoft’s official help page.

3. How to Compare Two Word Documents Side by Side
Prefer the visual route? Here’s how to compare two Word docs in Microsoft Word side by side:
Steps:
- Open both Word files.
- Click View > View Side by Side
- Use Synchronous Scrolling to scroll both at once
This method helps visually catch differences like formatting, spacing, and visual layout.

4. How to Compare Documents in Google Docs
You can also compare documents in Google Docs—perfect for cloud-based teams!
Steps:
- Open a Google Doc.
- Click Tools > Compare documents
- Upload the second document.
- Choose the author name for changes.
- Click Compare
Google will highlight the differences directly within a new document, similar to how Word handles it.

5. How to Merge Documents in Google Docs
Google Docs doesn’t have a native “merge” like Word, but you can copy-paste edits from compared files or use version history to combine changes:
- Use Tools > Version history to restore or combine document versions.
- Copy tracked edits from one file into another manually if needed.
Pro Tip: Use comments and suggestions for collaborative merging.

6. How to Compare Documents and Files Using Free Tools
Don’t have Microsoft Word? Try these free tools to compare Word documents:
Free Online Word Comparison Tools:
Just upload your files, and these tools will highlight differences and generate reports in seconds.
Bonus: Many of these tools work with PDFs and text files too!

Final Thoughts: Why Learn How to Compare Two Word Documents for Differences?
Mastering how to compare two Word documents for differences helps you:
Track edits from collaborators
Avoid overwriting old content
Streamline your editing workflow
Ensure version control across teams
Whether you use Microsoft Word or free tools, comparing docs is now quick and hassle-free.
Related Reading:
Frequently Asked Questions
Can I compare Word documents without Microsoft Word?
Yes! Use Google Docs or online tools like Diffchecker and Draftable.
Does Word highlight formatting changes too?
Yes. You can customize the comparison to include text changes, formatting, and comments.
How accurate is Word’s Compare tool?
Very accurate—it tracks insertions, deletions, and changes line by line.
Quick Recap:
You now know how to compare two Word documents for differences
You’ve explored how to compare two Word docs in Microsoft Word
You learned to merge, review, and edit docs across platforms
You discovered free tools for comparison on the go!