Instantly Compare Text and Find Differences

Our free and powerful Text Difference Checker helps you effortlessly compare two documents and highlights every change in seconds.

Original Text

Chars: 0 | Words: 0

Changed Text

Chars: 0 | Words: 0

Highlighted Differences

What is a Text Difference Checker?

A Text Difference Checker, often called a "diff tool," is a powerful utility designed to compare two pieces of text and visually highlight every change. Our TextDiff Pro tool instantly identifies characters and words that have been added, removed, or modified between the "Original Text" and the "Changed Text." It's an indispensable asset for developers reviewing code, writers tracking revisions, editors proofreading content, and anyone needing to spot discrepancies between two text versions quickly and accurately.

How to Use TextDiff Pro

Paste Your Texts: Copy your original text and paste it into the "Original Text" box on the left. Then, paste the new or modified version into the "Changed Text" box on the right.
Click Compare: Hit the vibrant "Compare Texts" button. The tool will immediately process both inputs.
View the Results: The "Highlighted Differences" section will appear below, showing you the comparison. Additions are highlighted in green (ins), and deletions are highlighted in red (~~del~~).
Use Utility Buttons: You can use "Swap Texts" to quickly switch the two inputs, "Load Sample" to see a demonstration, or "Clear All" to start over.

Key Features

Instant & Accurate: Utilizes the robust JsDiff library for fast and precise character-by-character comparison.
Clear Visualization: Intuitive color-coding makes it easy to spot additions and deletions at a glance.
Live Statistics: Get real-time character and word counts for each input field as you type or paste text.
Fully Responsive: Enjoy a seamless experience whether you're on a desktop, tablet, or mobile device.
Privacy Focused: All comparisons are done directly in your browser. Your text is never sent to our servers.
Helpful Utilities: One-click buttons to swap text, clear inputs, and load sample data for a quick demo.