Prompt Diff
Compare two versions of a prompt and see exactly what changed.
What is Prompt Diff?
When iterating on a prompt, it's easy to lose track of exactly what changed between one version and the next. This tool compares two blocks of text word by word and highlights exactly what was added and what was removed, so you can review a prompt edit at a glance instead of re-reading the whole thing.
How to use it
- Paste the earlier version of your prompt into Before and the newer version into After.
- Click Compare — added words are highlighted one way, removed words another.
The comparison runs a word-level difference algorithm entirely in your browser, so it works on prompts of any length without uploading either version anywhere.