Text Diff Checker
Paste two texts and see exactly what changed — a git-style colored diff with additions, deletions, and word-level edits, and a mechanical change count.
Overview
When two versions of a paragraph look almost the same, the differences hide in plain sight. A diff checker surfaces them: this loads an edited paragraph and its revision, then shows every change line-by-line with the exact words that moved highlighted inline. It reports what changed and nothing more — no quality score, no verdict on which version is better. For what a prompt revision means, the Prompt Version Diff; for which prompt wins, the Prompt Comparator. This one just shows the difference.
Workflow
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Paste both versions
Original on the left, changed on the right.
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Read the colored diff
Additions green, deletions red, word edits highlighted inline.
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Trust the count
A mechanical tally of lines and words that moved — no judgment.
Why This Works
- A colored diff makes hidden changes between near-identical texts obvious
- Word-level highlighting pinpoints exactly which words moved
- The count is mechanical — what changed, never whether it is better
Best for
- Spotting changes between two versions
- Reviewing an edit before accepting it
- Any two texts you need to compare
Not for
- Judging which version is better — that's the Prompt Comparator
- Interpreting a prompt revision's meaning — that's the Prompt Version Diff
Use cases
- Spotting changes between two versions
- Reviewing an edit before accepting it
- Any two texts you need to compare