Diff Checker

Compare two texts and see their differences highlighted by characters, words, or lines.

Original Text

Modified Text

Diff Result

Compare texts to see differences highlighted here

Enter your original text in the left textarea (red border)
Enter your modified text in the right textarea (green border)
Select your comparison method:
- Compare by Chars: Highlights character-level differences
- Compare by Words: Highlights word-level differences
- Compare by Lines: Highlights line-level differences
View the differences in the result section, where:
- Red text indicates content that was removed
- Green text indicates content that was added
- Gray text indicates unchanged content
Use the "Copy Result" button to copy the entire diff result to your clipboard
Use "Clear All" to reset both text areas and the result
Use "Load Example" to see how the tool works with sample texts

Code Review: Compare different versions of code to identify changes
Document Editing: Track changes between document drafts
Content Verification: Confirm text differences between versions
Legal Document Comparison: Identify modifications in contracts or agreements
Translation Verification: Compare source text with translated text
Bug Reporting: Show expected vs. actual output in software testing

For code comparison, use "Compare by Lines" for better readability
For prose or paragraph text, "Compare by Words" often provides more useful results
For precise character-level changes (like typos), use "Compare by Chars"
Very large texts may take longer to process, especially with character comparison
The tool preserves whitespace and line breaks in the comparison