AI Prompt Formatter: Structure a Prompt for Any AI Model

It normalizes whitespace (trailing spaces, Windows line endings, runs of blank lines) and, if you choose a framework, places your text under a Task heading with labeled sections around it: Role and Output format, or Context, Constraints and Output format, or an Instructions block that asks for step-by-step reasoning. It runs entirely in your browser with no AI call, so nothing you paste leaves the page.

No. It never rewrites, shortens or reorders your words. The only edits are whitespace normalization and, with Bullet each line on, a leading dash on each non-empty line. Everything else in the output is scaffold text and {{placeholders}} you fill in yourself.

A three-part structure: who the model should be (Role), what it should do (Task) and how it should answer (Format, including length, tone and layout). An explicit role and an explicit output format are the two instructions models follow most consistently, which is why RTF is the default here.

When the model needs background it cannot infer, or when there are rules it must not break: a word limit, a banned claim, a required section, a house style. Listing constraints as their own bullets is more reliable than folding them into the task sentence.

An Instructions block asking the model to think through the task before answering and to put the final answer under an Answer heading. It helps on analysis, math and debugging, where the model otherwise jumps to a conclusion; it adds length on simple factual prompts, so leave it off there.

Yes. The frameworks are plain text with Markdown headings, which all four read the same way. If you want the same prompt available in all four, AI Toolbox keeps a prompt library you insert by typing two slashes in the compose box on any of them, and Premium shares one library across all four.

Copy it into the AI Toolbox prompt library. Saved prompts keep their {{fields}} as dynamic values that a small form collects at insert time, so the wording stays identical run to run. The free plan holds 10 saved prompts, 2 prompt chains and the whole catalog; Premium ($9.99/month or $99 once per module) makes prompts and chains unlimited.

Free, with no account or sign-up, and nothing is uploaded: the formatting is a few string operations in your browser. The AI Toolbox extension is also free to install; the prompt library with 10 saved prompts, folders and search are on the free plan.