Online Text Compare

Compare two texts side-by-side and instantly see differences highlighted with color coding.

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< 15ms

Browser Execution Speed

100%

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About This Tool

The Online Text Compare Tool is a powerful utility that allows you to compare two pieces of text and instantly identify differences between them. Whether you're comparing documents, code snippets, articles, or any textual content, this tool provides a clear side-by-side view with highlighted additions, deletions, and modifications. The tool supports multiple comparison modes including character-level, word-level, and line-by-line analysis, making it perfect for writers, editors, developers, and content creators who need to track changes or find variations between text versions.

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How to Use

Paste your first text in the 'Original Text' text area
Paste your second text in the 'Modified Text' text area
Select your preferred comparison mode (character, word, or line)
Choose whether to ignore whitespace and/or case sensitivity
Click the 'Compare Texts' button to analyze differences
View the results with color-coded highlighting showing additions (green), deletions (red), and unchanged text (gray)
Use the 'Clear All' button to reset both text areas and start over

Frequently Asked Questions

Find Quick Answers

What types of text can I compare with this tool?

You can compare any plain text content including documents, code, articles, emails, notes, and more. The tool works with Unicode text and supports multiple languages.

How does the diff highlighting work?

The tool uses an optimized diff algorithm to compare texts. Additions are highlighted in green, deletions in red, and unchanged text appears in gray. You can choose between character-level, word-level, or line-by-line comparison modes.

Is there a limit to the text size I can compare?

The tool can handle large texts efficiently, but for optimal performance, we recommend comparing texts under 100,000 characters each. All processing happens in your browser, so there are no server-side limitations.

Can I compare files or documents?

Currently, the tool accepts pasted text only. For file comparison, you would need to open your files in a text editor and copy-paste the content into the text areas.

Is my text data secure?

Yes, all text comparison happens entirely in your browser. No data is sent to any server, ensuring complete privacy and security for your content.

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