🧰Locly

Compare Two Texts Side by Side

Compare two texts and highlight differences, processed locally in your browser

About This Tool

Compare two texts side by side and see exactly what changed. Additions are highlighted in green, deletions in red. All comparison happens locally in your browser β€” your texts are never uploaded to any server.

How to Use

  1. Paste or type the original text in the left panel
  2. Paste or type the modified text in the right panel
  3. Click 'Compare' to see the differences
  4. Toggle between line, word, or character comparison modes
  5. Use 'Swap' to exchange the two texts

Common Use Cases

  • Code review: Compare code versions to spot changes
  • Document editing: See what changed between document drafts
  • Configuration: Compare config files before deployment
  • Translation: Compare original and translated texts
  • Quality assurance: Verify content changes are correct

FAQ

Q1: What's the difference between comparison modes?

Line-by-line compares whole lines. Word-by-word shows which words changed within lines. Character mode highlights individual character differences.

Q2: Can I ignore whitespace differences?

Yes! Enable 'Ignore whitespace' to focus on content changes and ignore spacing differences.

Q3: What do the colors mean?

Green highlights show additions (new content). Red highlights show deletions (removed content). Some tools show yellow for modifications.

Q4: Is there a size limit?

For best performance, keep texts under 100KB each. Very large texts may slow down the comparison.

Q5: Is my text uploaded anywhere?

No. All comparison happens locally in your browser. Your texts never leave your device.

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