Is the Prompt Analyzer free?

Yes. It is free and open source. AI analysis uses free providers by default, with optional bring-your-own-key.

What does it check for?

Clarity, specificity, context, and safety — including prompt-injection resistance — producing a score and actionable fixes.

Does it detect prompt injection?

Yes. It flags common injection patterns and instruction-override attempts so you can harden the prompt.

Is my prompt sent to a server?

The AI analysis calls the provider you select. Treat any sensitive prompt accordingly, and use test data where possible.

Will it rewrite my prompt?

Yes. It suggests an improved version alongside an explanation of what changed and why.

Prompt Analyzer

Analyze your prompts for quality, clarity, and security issues

Help

Enter your prompt

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Ready to analyze

Enter a prompt above and click Analyze to get started

About this tool

The Prompt Analyzer scores your LLM prompts for clarity, specificity, and safety, and flags prompt-injection risks before they reach production. Paste a prompt to get a quality score, concrete improvement suggestions, and a safer rewrite. It is built for developers shipping features on top of AI APIs who want reliable, hard-to-hijack prompts.

How to use it

Paste your prompt. Enter the prompt you send to your LLM.
Run the analysis. Get a quality score plus a breakdown across clarity, specificity, context, and injection resistance.
Review issues and the rewrite. See flagged weaknesses and prompt-injection vectors, with an improved version you can adopt.
Iterate. Refine and re-run until the score and safety are where you want them.

Frequently asked questions

Is the Prompt Analyzer free?: Yes. It is free and open source. AI analysis uses free providers by default, with optional bring-your-own-key.
What does it check for?: Clarity, specificity, context, and safety — including prompt-injection resistance — producing a score and actionable fixes.
Does it detect prompt injection?: Yes. It flags common injection patterns and instruction-override attempts so you can harden the prompt.
Is my prompt sent to a server?: The AI analysis calls the provider you select. Treat any sensitive prompt accordingly, and use test data where possible.
Will it rewrite my prompt?: Yes. It suggests an improved version alongside an explanation of what changed and why.