Text Diff

Compare two texts side by side and see the differences highlighted line by line.

How to Use Text Diff?

  1. 1Type or paste your text or list into the input box above.
  2. 2Select your preferred options, fonts, cases, or filters.
  3. 3Click the Copy button to save your formatted or transformed text directly to your clipboard.

Instant Conversion

No page reloads needed. Your text changes in real-time as you select different options.

Unicode & Formatting

Supports custom Unicode fonts, case transformations, list sorting, and detailed text metrics.

100% Secure

Your text content is processed entirely inside your browser. No data leaves your machine.

Frequently Asked Questions

Is Text Diff free to use?
Yes, Text Diff is 100% free with no hidden charges, premium subscriptions, or limits. You can use it as much as you need.
How does the Text Diff tool work?
Compare two texts side by side and see the differences highlighted line by line. All operations are processed entirely inside your web browser using HTML5 features. Your files or input data are never uploaded to any server.
Is my data secure with Text Diff?
Absolutely. Since the processing runs client-side in your own browser, your data never leaves your device. This makes it completely secure and private.