Prompt Version Diff Checker
See what changed between two prompt versions.
Runs in your browser. Nothing is uploaded — your input is processed on this device and discarded when you close the tab.
Prompt Version Diff Checker
How to use this tool
- Enter your details in the fields above.
- Press Generate to see the result.
- Use Load sample to try the worked example, or Clear to start again.
Worked example
For version 1 Write a short poem about rain. and version 2 Write a short poem about heavy rain., the added word is heavy, no words were removed, and 6 words are kept in both.
What this tool does not do / Limits
Comparison is word-set based and case-insensitive, ignoring punctuation. It does not track word order, repeated words, or meaning, so two prompts can differ in sense while sharing most words.
Frequently asked questions
Does word order matter here?
No. This compares the sets of words, so a reordered prompt with the same words shows no change.
Are repeated words counted twice?
No. Each distinct word is listed once per side.
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