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Text Diff Checker

Compare two blocks of text and instantly highlight the differences between them.
Original Text Ready.
Changed Text Ready.
Compare Settings
Comparison Result Compare two texts to see the differences.
Additions 0 Deletions 0 Modified 0 Unchanged 0
Comparisons run entirely in your browser, so your text is never uploaded. Deletions are red, additions are green, and modified lines appear on both sides.
Tool Introduction

Compare two blocks of text and see exactly what changed, line by line. Paste an original and an edited version, hit Compare, and review additions, deletions, and modified lines in a side-by-side view with line numbers on both sides.

Handy for checking config edits, tracking copy changes, verifying regenerated output, or diffing small code snippets before a commit. Enable "Ignore case" or "Ignore whitespace" to focus on real content changes, or turn off unchanged lines to zoom straight to the edits. Copy the result as a unified diff or download it as a .diff file for your patch workflow.