Text Diff Checker
Compare two blocks of text side by side and highlight every difference line by line with color-coded additions, deletions, and changes. Ideal for proofreading, reviewing document edits, comparing code versions, and spotting subtle content changes. Works entirely in your browser.
Updated June 2026
- 1Paste your original text
- 2Paste the text to compare
- 3Review the highlighted differences
How to Use Text Diff Checker
- 1
Paste your original text
Enter the first version of the text in the left panel.
- 2
Paste the text to compare
Enter the second version in the right panel.
- 3
Review the highlighted differences
Added, removed, and changed lines are highlighted automatically.
Frequently Asked Questions
How does the text diff checker highlight differences?▼
Can I compare code files with the diff checker?▼
Is there a character or length limit?▼
Are the texts sent to a server for comparison?▼
How to use Text Diff Checker
- 1
Paste your original text
Enter the first version of the text in the left panel.
- 2
Paste the text to compare
Enter the second version in the right panel.
- 3
Review the highlighted differences
Added, removed, and changed lines are highlighted automatically.
Frequently asked questions
Everything you need to know about text diff checker.
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