Text Diff Checker
Spotting changes in long documents or code blocks is nearly impossible by eye. Our Side-by-Side Diff Checker does the hard work for you, highlighting exactly what was added, removed, or changed between two versions of your work.
Perfect for developers reviewing code changes, writers comparing drafts, and legal professionals checking contract versions.
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How to Compare Text
- 1
Paste your 'Original' text into the left box.
- 2
Paste the 'Changed' text into the right box.
- 3
Review the highlighted differences instantly: red for removals and green for additions.
Comparing Documents
Line-by-Line Analysis
Our tool analyzes differences at the line level first, and then highlights specific word-level changes within those lines for maximum precision.
Ignoring Whitespace
Sometimes changes in indentation can clutter a diff. Toggle the 'Ignore Whitespace' option to focus on the actual content changes.
Frequently Asked Questions
Is my text uploaded to a server?
No. All comparison logic happens locally in your browser. Your sensitive code and documents never leave your machine.
What format is the output?
We provide a visual side-by-side view, which is the easiest format for humans to read and understand.
Why Use This Tool?
- ✓Visual side-by-side comparison
- ✓Precision word-level highlighting
- ✓100% private and secure
- ✓Works for code, text, and data