Formatter loaded. Paste your messy prompt and click Format Prompt.

Prompt Builders

Prompt Formatter

Turn scattered instructions into a structured prompt with clear sections, requirements, and output expectations. Browser-side only — no AI rewriting, no prompt uploads.

Formatting Goal
Formatting Options
Output Format

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How it works

Paste your existing prompt — however it was written — into the input area. Select the formatting goal that matches your use case (developer request, research, content, support, or agent instructions). The formatter splits compound sentences at constraint boundaries, classifies each instruction by type, and groups them into dedicated sections: task, constraints, requirements, and output expectations. It does not add new instructions, rewrite your words, or invent content. It only reorganises what you already wrote so each part of your prompt is in the right place.

Use cases

  • A developer request that mixes refactoring goals, style constraints, and edge case checks — all in one sentence
  • A research ask that is too broad to produce useful output because scope and criteria are not separated
  • A content brief where audience, tone, and format are described but not structured for the AI to act on
  • A support ticket note that combines the customer situation, policy boundary, and desired response in a single paragraph
  • An agent instruction set that grew informally and now has unclear constraints and no explicit success criteria

Pro tips

  • The biggest improvement comes from compound sentence splitting. Write 'do X but don't Y' and the formatter will place each part in the correct section automatically.
  • If the Expected Output section is empty, your input probably has no output-specific instructions. Add a sentence like 'Explain the changes made' or 'Return a summary table' and reformat.
  • Use the Structure Preview tab to see which sections were detected, which were empty, and what changes were applied — it's a useful diagnostic before using the formatted prompt.

FAQ

Does the formatter rewrite my prompt?

No. It splits compound sentences, removes leading filler words, and strips trailing punctuation from bullet items — but it does not change the meaning of any instruction or add new content.

Why are some sections missing from the output?

Sections are only included when matching content is found in your input. If Constraints is empty, your prompt had no constraint-type instructions. Add them to your input and reformat.

What is compound sentence splitting?

When a sentence contains both an action and a constraint — like 'Refactor this JS but don't change behavior' — the formatter splits it into two separate items: one for Task and one for Constraints. This produces more useful section separation than treating the whole sentence as a single instruction.

Is my prompt sent to a server?

No. All formatting runs in your browser using JavaScript. Nothing is sent to an external service or API.