A text diff (difference) shows the changes between two versions of text. It highlights what was added, removed, or modified, making it easy to see exactly what changed.

Text Diff Tool: Compare & Merge Text Differences

Q: Is my text data secure?

Yes, absolutely. All text comparison happens entirely in your browser. Your data is never sent to any server, ensuring complete privacy and security.

Q: What types of differences are shown?

The tool shows four types of changes: same (unchanged lines), changed (modified lines), added (new lines), and removed (deleted lines). Each type is color-coded for easy identification.

Q: Can I compare code files?

Yes, the Text Diff Tool works great for comparing code files, configuration files, or any text-based content. It shows line-by-line differences with clear visual indicators.

Q: Does it work offline?

Yes, this tool works completely offline. Once the page is loaded, you can compare texts without an internet connection.

Q: What statistics are provided?

The tool provides comprehensive statistics including total lines, number of unchanged lines, changed lines, added lines, removed lines, and character counts for both versions.

Instantly compare two blocks of text or code to spot changes, additions, and deletions. Our visual diff viewer highlights every modification line-by-line, making it perfect for code reviews, editing drafts, or checking version history.

Last updated: 2025-01-27

Left text (Original)

Pos: 0 / 0

Right text (Modified)

Pos: 0 / 0

Diff

Run the diff to see what changed between the two texts.

Key Features

Side-by-side text comparison
Color-coded difference highlighting
Line-by-line diff analysis
Comprehensive change statistics
Character count tracking
No data sent to servers - complete privacy
Free to use, no registration required

How to Use the Text Diff Tool

Enter Original Text: Paste or type the original text in the left textarea.
Enter Modified Text: Paste or type the modified text in the right textarea.
Compute Diff: Click the "Compute diff" button to analyze the differences.
Review Results: The diff results show side-by-side comparison with color coding and statistics.

Why Use This Text Diff Tool?

Tracking manual changes between two versions of a document is slow and error-prone. A "diff" tool automates this by algorithmically finding changes line-by-line.

Whether you are a developer resolving merge conflicts or a writer comparing drafts, Text Diff Tool gives you clarity.

Color-coded lines and 100% offline browser processing keep your data private.

Frequently Asked Questions

What is a text diff?

A text diff shows line-by-line differences (additions, deletions, changes) between two blocks of text.

Is my text data secure?

Yes. Comparison runs entirely in your browser.

What types of differences are shown?

Same, changed, added, and removed lines are identified and color-coded.

Can I compare code files?

Yes! It works great for code, config files, or markdown.

Does it work offline?

Yes, 100% offline support as a PWA.

What statistics are provided?

Total line count, count of changed/added/removed lines, and character totals for both sides.