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Text Diff

Paste original and changed text to see a clear line-level diff. Optionally ignore whitespace differences while reviewing edits.

Features

  • Line-by-line comparison
  • Added and removed line highlighting
  • Ignore whitespace option
  • Live diff stats

How to use Text Diff

  • 1
    Paste the original text on the left and the changed text on the right.
  • 2
    Review highlighted additions and removals in the diff panel.
  • 3
    Enable Ignore whitespace if spacing-only changes should be skipped.

Examples

Changed line

Input
Hello
Old line
End
Output
Hello
+ New line
− Old line
End

About Text Diff

Compare two text versions and highlight added and removed lines with an LCS-style diff. Handy for reviewing copy edits, configs, and small code snippets.

Frequently asked questions

This tool compares by line. Whole lines are marked as added or removed when they differ.

No. Diffing runs entirely in your browser.

It trims and collapses whitespace before comparing lines so formatting-only changes are ignored.

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