Free Online Text Diff - Compare Two Texts & Find Differences

Compare two texts and see differences instantly. Choose word, character, or line mode. Side-by-side or unified view. Ignore whitespace or case. Copy or download the result. No signup, no limits.

Text Diff

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Paste or type text in both panels to compare.

What is a Text Diff and Why You Need One

A text diff compares two versions of text and highlights what changed. Additions appear in green, deletions in red. Use it to review edits, compare drafts, or spot changes in code, contracts, or documents. If you need to check the length of your documents, use our Word Counter. You can also normalize text format with the Case Converter before comparing, or analyze keyword usage with the Word Frequency Analyzer.

Without a diff tool, you must read both texts line by line. A diff shows changes at a glance. All comparison runs in your browser - your text never leaves your device.

Who Uses Text Diff and Common Use Cases

👨‍💻 Developers

Compare code before committing, review pull requests, or check config changes. Word mode works well for code. Line mode suits multi-line changes.

✍️ Writers and editors

Compare draft versions, track edits between revisions, or verify proofreading changes. See exactly what was added or removed in each round.

📄 Legal and business

Compare contract versions, policy updates, or agreement changes. Spot modifications quickly without reading both documents in full.

How to Use the Text Diff Step by Step

1️⃣ Paste original text

Paste or type your original text in the left panel. This is the baseline version you want to compare against.

2️⃣ Paste modified text

Paste or type the modified version in the right panel. Differences appear in real time as you type.

3️⃣ Choose diff mode and options

Select word (best for prose), character (most precise), or line mode. Enable ignore whitespace or ignore case to focus on meaningful changes.

4️⃣ Copy or download the result

Use the copy button to get the merged text in your clipboard, or download it as a file. The merged result keeps additions and removes deletions.

Tips to Get the Most Out of Text Diff

💡 Use word mode for documents

Word mode highlights changes by word. It is easier to read than character mode for long paragraphs and articles.

⚡ Ignore whitespace for code

When comparing code, enable ignore whitespace to hide formatting-only changes. You will see only real code edits.

🔍 Use line mode for configs

For config files or logs, line mode compares whole lines. Good when each line is a separate unit.

Why Use Our Text Diff

🚀 Real-time comparison

Differences update as you type. No submit button. Choose side-by-side or unified view. Word, character, or line mode.

🔒 Private and secure

All diffing happens in your browser. Your text is never sent to any server or stored anywhere.

🌐 Free, no signup

Use it on desktop or mobile. No account, no limits, no ads. Copy and download your result anytime.

Text Diff: Free, Fast and Ready to Use

Our text diff is free to use, requires no account, and works on all devices. Your text stays private. Compare documents, code, or any text. This tool is ready when you need it.

Try it now. Paste two texts and see the differences instantly. No setup, no hassle - just clear, color-coded results.

Frequently Asked Questions about Text Diff

Is the text diff free to use?

Yes. The text diff is completely free. No paid features, no premium tiers, no hidden costs. Use it as often as you need.

Do I need to create an account?

No. You can use the text diff without signing up or logging in. Just open the page, paste your texts, and compare.

Is my data safe?

Yes. All comparison happens in your browser. Your text is never sent to any server or stored anywhere.

Does it work on mobile?

Yes. The text diff works on smartphones and tablets. The interface adapts to smaller screens.

Are there any limits?

No. There are no text length limits or usage limits. Paste as much as you need and compare as many times as you want.

What is the difference between word, character, and line mode?

Word mode compares by word - best for prose. Character mode compares character by character - most precise. Line mode compares whole lines - best for code or config files.

Can I compare code?

Yes. Use line mode for multi-line code changes or word mode for inline edits. Enable ignore whitespace to hide formatting-only changes.