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Text Diff Checker

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Compare two text blocks or code snippets to highlight added, deleted, and modified lines, words, or characters.

100% In-Browser Privacy

Zero Server Uploads

Comparison Granularity:

Original Text

Modified Text

Difference Output

function calculateTotal(items) { let total = 0; for (let i = 0; i < items.length; i++) { total += items[i].price; } return total; function calculateTotal(items = []) { // Use modern reduce for concise sum calculation return items.reduce((accum, item) => accum + (item.price || 0), 0); }

Key Capabilities & Features

Line, word, and character granularity modes

Color-coded visual difference highlighting

Fast Diff.js computation engine

Zero server uploads

How to Use Text Diff Checker

1
Enter Original TextPaste the original version in the left box.
2
Enter Modified TextPaste the modified version in the right box.
3
Review DifferencesSee highlighted additions (green) and deletions (red).

Frequently Asked Questions

Can I compare code snippets as well as plain text?

Yes! It works on any text format including JavaScript, Python, HTML, and prose.

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