Compare two text files side-by-side to find differences instantly. Essential for developers, writers, and editors to track changes and merge content.

Spot the Difference

Whether you're debugging code, reviewing a contract, or checking student essays, spotting small changes between two versions of a document is tedious and error-prone. A specialized Diff Checker automates this process, highlighting exactly what has been added, removed, or modified.

Our tool provides a clear, color-coded visual comparison. It's designed to handle large blocks of text and code, making it easy to reconcile versions without missing a single character.

Key Features

🚥 Color-Coded Diff

Red highlights deleted text, while Green highlights added text. Modified lines are clearly marked for quick review.

📄 Line-by-Line

View changes in a side-by-side split view or a unified inline view, depending on your preference.

⚡ Real-Time Comparison

Paste your data and see the differences instantly. No file uploads required.

🕵️ Character Level

We don't just show changed lines; we highlight the specific words or characters within the line that were altered.

How to Use

  1. Original Text: Paste your original version in the left box.
  2. New Text: Paste the modified version in the right box.
  3. Compare: Click "Find Difference" to generate the report.
  4. navigate: Use the "Next/Prev Change" buttons to jump between edits in long documents.

Visual Example

Original
- function startApp() {
console.log("Loading...");
}
Modified
+ function initApp() {
console.log("Loading...");
}

Frequently Asked Questions

Is my data private?

Yes. The comparison logic runs entirely in your browser using JavaScript. No text is sent to our servers.

Does it match the 'git diff' command?

Yes, the underlying logic is similar to standard diff algorithms used by Git and SVN, making it familiar for developers.