Diff Checker

About the Online Text Compare Tool

Have you ever had two versions of a document and needed to know what changed? Or maybe you're a developer looking at two code files to spot a bug. That's exactly what this tool is for! Our Diff Checker makes it easy to compare two pieces of text and see exactly what's different. It's a simple, fast, and free way to find changes.

Why Should You Compare Text?

Comparing text, which we often call "diffing," is super useful for a lot of reasons. It's not just for programmers!

• Spotting Changes: The most obvious reason! You can quickly see what words have been added, removed, or changed between two versions of a text.
• Code Reviews: As a developer, you might need to check what changes a teammate made to a file. A diff tool makes this so much easier.
• Checking Your Work: If you're writing an essay or a report, you can compare your latest draft to an older one to make sure you didn't accidentally delete something important.
• Finding Errors: Sometimes a single misplaced character can break a piece of code. A diff tool makes these tiny changes stand out.

How to Use This Diff Tool

Using the tool is very straightforward. I designed it to be as simple as possible.

• Paste the original text into the "Original Text" box on the left.
• Then, paste the newer or modified text into the "Changed Text" box on the right.
• Choose your "View Style." You can pick "Side-by-side" for a two-column view or "Line-by-line" for a single-column view.
• Click the big "Compare Text" button.
• The results will appear below, with the differences highlighted. Added lines are usually in green, and removed lines are in red.

We want you to know that your privacy is important. This tool works entirely in your web browser. So, none of the text you paste here is ever sent to a server. It all stays on your computer.

Frequently Asked Questions

What is a diff checker?

A "diff checker" or "diff tool" is a program that compares two files or blocks of text and shows you the differences between them. The word "diff" is short for difference. It's a common tool used by programmers and writers to track changes.

Is my text safe? Is it sent to your server?

Your text is completely safe. The entire comparison process happens on your own computer, inside your web browser. We never see, save, or send any of your data to our servers. So, you can feel confident using it for sensitive information.

How does the tool show the changes?

The tool highlights the lines that have been changed. Typically, lines that have been removed from the original text are shown with a red background, and lines that have been added to the new text are shown with a green background.

Can I compare source code with this tool?

Yes, absolutely! This tool is perfect for comparing source code from languages like JavaScript, Python, PHP, C++, and many others. It treats code just like any other text and will show you exactly which lines have been modified.

Do I need to install any software to use this?

No, you don't need to install anything. This is a fully online tool that works in any modern web browser like Chrome, Firefox, or Safari. Because it's a web page, you can use it on any operating system, whether it's Windows, macOS, or Linux.