Prompt-Diff

See exactly what changed between prompt versions.

Version control for prompt engineers.

WHAT IT DOES:

prompt-diff old-prompt.md new-prompt.md --out diff.html

Generates a visual side-by-side diff showing:

→ Added lines (green)

→ Removed lines (red)

→ Changed lines (yellow)

USE CASES:

→ Track system prompt iterations

→ Debug prompt regressions

→ Document prompt evolution

→ Code review for prompts

OUTPUT OPTIONS:

--out diff.html (visual HTML)

--out diff.md (markdown)

--unified (unified diff format)

✅ Beautiful HTML output

✅ Works with any text files

✅ No cloud, no uploads

Stop guessing what changed.