Text Diff – Compare Two Texts

Compare two texts with clear highlights for additions, deletions, and unchanged content. Runs entirely in your browser.

Runs locally — no data leaves your browser✨ Highlights additions, deletions, and unchanged text automatically⚡ Updates instantly as you type

Text 1

0 chars
Drop a .txt file here to load

Text 2

0 chars
Drop a .txt file here to load
Ctrl + Enter to compare

Diff output

Mode: Line · Showing unchanged
Ctrl + Shift + C copies formatted

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Frequently Asked Questions

How is Text Diff different from Text Compare on this site?

Text Diff gives one continuous diff output (like a patch), defaults to line-by-line comparison, and lets you hide unchanged text—ideal for configs and code-shaped text. Text Compare is built for editorial review: side-by-side or inline layout, explicit modified (old→new) highlights, and download of a written report.

How do I compare two texts?

Paste your first text in the 'Text 1' field and your second text in the 'Text 2' field. The tool automatically highlights differences. You can choose between line-by-line, word-by-word, or character-by-character comparison modes.

What's the difference between comparison modes?

Line mode compares entire lines, word mode compares individual words, and character mode compares each character. Line mode is best for code or documents, word mode for prose, and character mode for precise differences.

Can I copy the diff results?

Yes! You can copy either the original texts or the formatted diff output. The diff output shows additions in green and removals in red, making it easy to see what changed.

Is the text diff tool free to use?

Yes! Our text diff tool is 100% free with no registration required, no usage limits, and no hidden fees. You can compare as many texts as you need for your development work.

Are my texts stored or tracked?

No, all text comparison happens locally in your browser. We don't store, save, or have access to any text you compare. Your privacy is completely protected.

Can I hide unchanged lines?

Yes! Toggle the 'Show Unchanged' option to hide lines that haven't changed, making it easier to focus on the differences between the two texts.

Which comparison mode should I use?

Use line mode for code or documents with clear line breaks, word mode for prose and sentences, and character mode for precise character-level differences. Line mode is most common for code comparison.

Can I compare code files?

Yes! The text diff tool works great for comparing code files. Use line mode for best results. It highlights additions, deletions, and changes, making it easy to see code differences.

How accurate is the diff algorithm?

The tool uses a sophisticated diff algorithm that accurately identifies additions, deletions, and modifications. It handles large texts efficiently and provides detailed statistics about changes.

Can I copy the diff output?

Yes! You can copy the formatted diff output which shows additions in green and removals in red. This makes it easy to share differences or document changes.

What do the statistics show?

The statistics show the number of characters added (green), removed (red), and unchanged. This gives you a quick overview of how much the texts differ from each other.