When someone sends you a revised document, you need to know exactly what changed. Microsoft Word has a built-in Compare feature, but it requires desktop Word, buries the output in a confusing markup view, and doesn't give you a clear summary of what happened.
ChangeChecks offers a simpler approach: upload two .docx files and get a clean, readable comparison in seconds.
How it works
ChangeChecks extracts the text from both documents and highlights every difference — words that were added, removed, or changed. The summary bar at the top tells you how many changes were made and how similar the documents still are.
What you'll see
The results page shows your comparison in two views:
The merged view reads like Track Changes in Word — removed text is shown in coral with a strikethrough, added text in sage with an underline. You can read through the document naturally and spot every edit.
The side-by-side view puts the original on the left and the revised version on the right, with changed sections highlighted. This is useful when you want to compare specific paragraphs directly.
When to use this
This is especially useful when you receive a "final" contract, proposal, or agreement that's been through several rounds of revision. Rather than trusting that only the agreed changes were made, you can verify every word.
It's also helpful for writers comparing manuscript drafts, HR teams reviewing policy updates, or anyone who needs to track revisions across document versions.