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Prompt Optimiser

Rewrites a rough prompt into a structured one and explains what was missing and why it mattered.

AI Writing Nothing uploaded No sign-up Free, unlimited
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In short Optimising a prompt means finding what is missing rather than making it longer, and in practice the same few things are missing almost every time. No stated output format, so the model picks one. No audience, so it writes for nobody in particular. No constraints, so it produces four paragraphs when you wanted three bullets. No context, so it answers generically about a topic it knows rather than specifically about your situation. And no instruction for missing information, so it invents. This tool restructures a rough prompt into the six-part form and, more usefully, says which part was absent and what that absence was costing you — because the point is to learn the pattern rather than to keep coming back. The commonest single fix is adding an example of the output you want. Describing a format takes a paragraph and is still ambiguous; showing one takes three lines and is not. If the output was close but wrong in tone or length, that is nearly always a constraints problem rather than a prompt-structure problem.

How to use the Prompt Optimiser

  1. Tell the tool what you are writing about and who it is for.
  2. Pick a tone and length, then generate.
  3. Edit the draft to add your own detail — it is a starting point, not a final draft.

About the Prompt Optimiser

The Prompt Optimiser rewrites a rough prompt into a structured one and explains what was missing and why it mattered. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.

What people use it for

  • Fixing a prompt that keeps returning generic output.
  • Understanding which part of a prompt is doing the work.
  • Turning an ad-hoc prompt into a reusable template.

Frequently asked questions

Is the Prompt Optimiser free, or is there a paid tier?
Free, unlimited, and no email address required. You can use it a hundred times a day and nothing changes.
Is the Prompt Optimiser safe to use with private information?
No. The Prompt Optimiser runs entirely in your browser using JavaScript. Because the work happens locally, the utility also keeps working if your connection drops, and closing the tab is all it takes to discard everything.
Who is the Prompt Optimiser for?
The jobs it is built for: fixing a prompt that keeps returning generic output. Understanding which part of a prompt is doing the work. Turning an ad-hoc prompt into a reusable template. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Can I use the Prompt Optimiser on mobile?
Yes. The page is responsive and the utility works in Chrome, Safari, Firefox, Edge and Samsung Internet on both Android and iOS. There is no app to install and nothing to sign into.

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