Text Compare: Advanced Online Diff Checker

Text Comparison

Identify differences between two versions of text instantly.

Difference Visualization

Real-time
Original Text (Main)
Modified Text (Secondary)

How to Use Text Compare

  1. Paste Original Text: Enter the base version of your text in the left panel.
  2. Paste Modified Text: Enter the updated version in the right panel.
  3. Select Diff Method: Choose between "Words" (standard), "Chars" (precise), or "Lines" (structure) to adjust how differences are calculated.
  4. Analyze Results: The tool will instantly highlight added text in green and removed text in red.

Use Cases

For Developers

Quickly check changes in configuration files, code snippets, or JSON responses without needing a heavy IDE.

For Writers & Editors

Track revisions in drafts, articles, or essays to see exactly what has been edited, added, or deleted.

Frequently Asked Questions

How does the comparison algorithm work?

We utilize the Myers' diff algorithm, which is the industry standard for identifying the shortest sequence of edits to transform one text into another. It's efficient and accurate for both small snippets and large documents.

Is my data secure?

Yes! All text comparison happens directly in your browser using JavaScript. Your text never leaves your machine and is never sent to our servers.

What are the different modes?

Words: Best for natural language. Compares whole words.
Chars: Best for code or fixing typos. Highlights individual letter changes.
Lines: Best for lists or code blocks. Compares line by line.