Free prompt fixer — no sign-up
Prompt improver
Paste the prompt you already use. We score it out of 100, name every weakness — missing role, no output format, no constraints — and hand back a rewritten version you can edit and copy.
For
How the score works
Each prompt is checked against ten things that reliably change the quality of an answer: a role for the model, one clear task, the context it should work from, the audience, the output format, a length, a tone, constraints on what to avoid, an example, and whether the wording is specific enough to aim at. Every missing piece costs points, and the rewrite adds it back as an editable field.
Nothing is sent anywhere — the check runs in your browser. Want the reasoning behind each rule? Read the prompt engineering guide, or start from a task instead.