About
Check line-by-line differences between two text inputs.
What the diff checker does
This utility compares two text blocks and marks unchanged, added, and removed lines so edits are easier to review.
Ignore whitespace option
You can ignore whitespace-only differences to focus on meaningful content changes instead of indentation or spacing updates.
Practical usage
Use it while reviewing configuration updates, validating generated files, comparing copied snippets, or checking test fixture changes.