Prompt Improver

Turn a scribble into a pro prompt

Paste a rough request and get polished, model-tuned prompts for Claude, GPT and Gemini — plus a JSON version. It sharpens your wording and leaves [blanks] for your specifics; it never invents facts about your business.

How it works

  1. 1Paste a rough request or half-formed prompt.
  2. 2It rewrites it into polished, model-tuned prompts for Claude, GPT and Gemini, plus a JSON-structured version.
  3. 3Fill any [blanks] with your specifics, then paste the version for your model of choice.

When to use it

  • Your AI outputs are inconsistent and you suspect the prompt is the problem.
  • You want the same task tuned for different models.
  • You need a structured JSON prompt for an app or workflow.

Frequently asked questions

Is the prompt improver free?

Yes — free, no sign-up. Paste a rough request and get improved prompts right away.

Why are there different versions for Claude, GPT and Gemini?

Each model responds best to slightly different phrasing and structure. The tool tunes the wording for each so you can paste the right version into the model you're using, rather than a one-size-fits-all prompt.

Does it invent details about my task?

No. It sharpens your wording and structure and leaves [blanks] for your specifics — it never makes up facts about your business or request.

What's the JSON version for?

It's a structured prompt you can drop into an app, script or API call where you need consistent, parseable output rather than free-form text.