What is a Text Difference Checker?

A Text Difference Checker, commonly known as a "diff tool," is a powerful utility that compares two pieces of text and visually highlights the changes between them. It shows you exactly what has been added, deleted, or modified from one version to the next. It's an indispensable tool for developers, writers, editors, and anyone who needs to track revisions or merge changes between two documents.

What Problem Does This Tool Solve?

When you have two similar but not identical versions of a document, finding the exact differences by eye is nearly impossible, especially with long texts. You might be trying to see what changes a colleague made to a report, what code has been altered in a file, or which version of your own writing is the most recent. Manually comparing them line by line is incredibly slow and you're almost guaranteed to miss subtle changes.

A Text Difference Checker solves this problem by automating the comparison. It provides an instant, clear, and color-coded visualization of the changes, saving you hours of manual proofreading and ensuring you never miss a revision again.

How to Use the Diff Tool?

1. Paste Original Text: Copy the first version of your text (the "before" version) and paste it into the left input box.
2. Paste Modified Text: Copy the second version of your text (the "after" version) and paste it into the right input box.
3. See the Difference: The tool will instantly compare the two texts and display a highlighted result, showing you which lines were added, removed, or changed.

Note: This tool is currently in development. The core diffing algorithm is complex and we are working to bring you a seamless experience.

Frequently Asked Questions (FAQ)

1. How does a diff tool work?

It uses a sophisticated algorithm (like the Longest Common Subsequence algorithm) to find the most efficient way to transform the first text into the second, and then highlights these transformation steps (additions/deletions).

2. Is my data secure?

Yes. Our tool will be designed to run entirely in your browser (client-side). The text you paste is never sent to our servers, ensuring your data is completely private.

3. Can I compare files?

The initial version will focus on comparing text that you paste in. Future versions may include the ability to upload files directly.