✍️ Text ✅ 100% Free ⚡ Instant

Text Compare

Paste two texts to instantly highlight every addition, deletion, and unchanged line. Supports inline character diff, side-by-side view, and ignoring whitespace or case differences.

Paste your two texts

Original Text

Modified Text

Ignore case · Ignore extra whitespace · Inline char diff · Side-by-side view

Load example: 💻 Code 📝 Prose ⚙️ Config ✅ Identical 🔄 Swap

0 changes

Comparison Result

Similarity —

Original: — lines Modified: — lines

📊 Diff Statistics

Lines Added

—

Lines Deleted

—

Lines Unchanged

—

Total Changes

—

Chars in Original

—

Chars in Modified

—

🔤 Changed Words

📋 Line-by-Line Diff

📊 Diff Stats

—

Added

—

Deleted

—

Unchanged

—

Similarity

🎨 Colour Legend

+ Line added in modified text

− Line removed from original

· Line unchanged in both texts

💡 Tips

⌨️

Ctrl + Enter to compare without clicking the button.

🔤

Ignore case is useful for comparing config files where casing may vary.

↔️

Side-by-side view is best for prose — unified view is better for code diffs.

🔄

Swap reverses the direction — additions become deletions and vice versa.

🔗 Related Tools

Remove Duplicate Lines

What is a Text Compare Tool?

A text compare (or diff) tool takes two pieces of text and highlights every line that was added, removed, or changed between them. It's the same technology used by Git, GitHub, and code review tools — but accessible directly in your browser without any setup.

Common use cases include comparing document revisions, spotting changes between config files, reviewing contract edits, and debugging why two strings that look identical are being treated as different by your application.

Frequently Asked Questions

No — all diffing happens entirely in your browser using JavaScript. Nothing is uploaded. This makes it safe to compare sensitive content like contracts, credentials, or private configuration files.

This tool uses the Myers diff algorithm — the same algorithm used by Git. It finds the shortest edit script (minimum additions and deletions) that transforms the original text into the modified text, which produces the most readable and intuitive diffs.

When enabled, multiple consecutive spaces and tabs are normalised to a single space before comparison. This is useful when comparing text that has been reformatted — indentation or alignment changes won't show up as differences, letting you focus on actual content changes.

On lines that are similar but not identical (a common case when a sentence is edited), inline character diff highlights the exact characters that changed within the line — not just the whole line. This is especially helpful for spotting small typos, number changes, or word substitutions.

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About This Text Compare

Image processing tasks that once required desktop software can now be done instantly in the browser. This free online Text Compare handles your image in seconds — no upload limits, no account required, and no software to install.

How to use

Upload your image or paste an image URL.

Configure any available settings.

Download or copy the processed result.

Key advantages

Processes images entirely in your browser — files are never uploaded to a server

Works on any device including phones and tablets

No file size restrictions or usage limits

Free with no account or subscription needed

This tool is ideal for developers, designers, content creators, and anyone who needs quick image processing without the overhead of a full desktop application.

Frequently Asked Questions

Is this Text Compare free to use? +

Yes, completely free. No signup, no account, no payment required. Just paste your input and use it directly in your browser.

Does this tool store or send my data anywhere? +

No. Everything runs entirely in your browser using JavaScript. Your data never leaves your device or gets sent to any server.

What browsers does this tool support? +

It works in all modern browsers — Chrome, Firefox, Safari, Edge, and Opera — on both desktop and mobile.

Can I use this tool offline? +

Once the page is loaded, the tool runs locally in your browser without needing an active internet connection for most operations.

Text Compare

What is a Text Compare Tool?

Frequently Asked Questions

Enjoying this tool?

Need something built, not just formatted?

About This Text Compare

How to use

Key advantages

Frequently Asked Questions

Need a Custom Version of This Tool?