All-in-One

Prompt Optimizer

Three tools in one: analyze prompt clarity with 5-dimension scoring, auto-rewrite for better results with before/after comparison, and browse 12 proven templates. All 100% client-side.

Why prompt quality matters

LLMs respond to what you actually write, not what you mean. A vague prompt like "write something about AI" gives a generic result. A structured prompt with a role, format, and examples gives a usable result.


The analyzer checks 5 categories: Role (does the model know who it's being?), Format (is the output structure defined?), Examples (did you show what you want?), Clarity (any vague or weak words?), and Constraints (tone, length, audience specified?).


Tip: A score of 7+ usually means a usable prompt. Under 5 and you'll get generic results. Try the example buttons to see how different prompts score.

or try an example →
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📋 Suggestions

    How the rewrite works

    The rewrite is 100% client-side — no API calls, no LLM. It applies four transformations:


    1. Role injection — If no role is detected, it prepends a relevant expert persona based on the prompt topic (developer, writer, analyst, etc.)
    2. Format specification — If no output format is defined, it appends one based on the content type (list for instructions, JSON for data, etc.)
    3. Vague language cleanup — Common weak words are replaced with specific alternatives: "maybe" → "specifically", "things" → "factors", "good" → "well-defined"
    4. Constraint inference — Relevant constraints are added: tone guidance, audience awareness, length limits, or exclusion criteria

    Limitation: This is a pattern-based transformation, not an LLM rewrite. It won't restructure arguments, improve reasoning, or fix logical errors. For that, use the improved prompt as input to an LLM.

    or try an example →
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    Score pending Press Analyze to check your prompt.
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    📝 Rewritten Prompt

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    Improved

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      How to use these templates

      Each template is a starting point — a proven structure that gets you good results. To get great results:


      1. Copy the template with one click
      2. Replace the {{variables}} with your specific content
      3. Customize the role or format to match your use case
      4. Load into the Analyzer tab to check clarity

      Templates cover 5 categories: Writing, Code, Data, Business, and Creative. Use the filters above to narrow down.

      Full Template

      Variables

      Example Output

      Tips

        How this tool works: The analyzer scores prompts across 5 dimensions (0-10). The rewrite applies template-based improvements — no AI, no API calls. Templates are curated for common tasks. Everything runs in your browser — nothing leaves your device.

        Check the steps: Step 1: Analyzer · Step 2: Rewrite · Step 3: Templates