Text Diff

Compare two texts and highlight differences instantly. Find changes between versions, code, or documents.

How to compare two texts and find changes When edits are small but spread across a long document (or code snippet), it’s hard to see what changed. Compare side - by - side in your browser with no installation. Useful for writers, reviewers, and developers. Useful when: • reviewing revisions • comparing configs • checking copy changes

When you have two versions of a document or snippet, finding what actually changed can be hard—especially with long text or small edits spread across multiple lines.

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Help and details

How to use

  1. Paste the original text in the left panel
  2. Paste the modified text in the right panel
  3. View highlighted differences instantly
  4. Copy or export the comparison result

Privacy and processing

All comparison happens in your browser. Your texts are never sent to our servers.

Frequently Asked Questions

How does the diff comparison work?
We use advanced algorithms to find the longest common subsequences and highlight additions (green), deletions (red), and modifications between your texts.
Is my text data private?
Yes. All comparison happens locally in your browser. Your texts are never sent to our servers, ensuring complete privacy.
Can I compare code files?
Yes, our tool works great for comparing code. It highlights line - by - line differences and is useful for code review and debugging.
Can I compare large texts?
Yes, we can handle texts up to 1MB each. Very large texts may take a moment to process in your browser.
Does it show line numbers?
Yes, line numbers are displayed to help you quickly locate the differences in your texts.
Can I ignore whitespace differences?
Yes, you can toggle an option to ignore whitespace changes and focus only on content differences.
What's the difference between inline and side - by - side view?
Side - by - side shows both texts in parallel columns. Inline view shows a unified diff with additions and deletions in a single column.
Can I export the diff results?
Yes, you can copy the results or download them as a text file for your records.