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Text Diff Checker – Compare & Highlight Text Differences | OnlineUtilityTools

Compare two blocks of text and see the exact differences highlighted.

Text Diff Checker – Compare Text & Highlight Differences

Comparing two texts to find differences is tedious without the right tool. Our text diff checker instantly compares two blocks of text side-by-side and highlights exactly what changed—additions in green, removals in red. Essential for proofreading, version control, content changes, and document comparison. Perfect for writers, developers, and anyone tracking text modifications.

When Should You Use This Tool?

Proofreading:Compare original and edited text to see all changes at a glance.
Document Versions:Track changes between document versions without complex tools.
Content Review:Identify additions and deletions in content updates quickly.
Code Comparison:Compare code snippets to find specific differences.

Example of How This Tool Works

Text 1 (Original):

The quick brown fox jumps over the lazy dog

↓ Compare ↓

Text 2 (Modified):

The quick red fox jumps over the sleeping dog

The tool shows "brown" in red (removed), "red" in green (added), "lazy" in red, and "sleeping" in green. All differences are instantly highlighted for easy identification.

Compare Texts

Original Text

Modified Text

Differences Found: 0

How This Tool Works

Enter First Text

Paste or type the original text in the first input field.

Enter Second Text

Paste or type the modified text in the second input field.

View Differences

See highlighted differences with additions in green and removals in red.

Frequently Asked Questions

This text diff checker works locally in your browser with no data stored. Compare as many text pairs as you need for free.

Explore other text comparison and analysis tools on OnlineUtilityTools.

Text Diff Checking Explained

Text diff checking identifies differences between two versions of content, essential for document review, version control, and quality assurance. Writers compare drafts to see what changed, developers use diff tools to review code changes, and content teams verify updates. Our text diff checker highlights additions in green, removals in red, and identical content in neutral, making changes instantly visible.

Perfect for: Content editors tracking revisions, developers reviewing code changes, students comparing essay drafts, translation teams verifying accuracy, and anyone needing to identify what changed between two documents. The side-by-side comparison makes it easy to understand modifications at a glance.

Paste two versions of your text and instantly see what's different. Color-coded highlighting makes it simple to identify additions, deletions, and modifications. Free, fast, and no registration required—the ultimate tool for tracking textual changes.

Prepare Text Before Comparing

Need to normalize text format before comparing? Ourcase converter toolcan help you convert text to a consistent format (UPPERCASE, lowercase, Title Case) before using the diff checker for accurate comparisons.