Skuto Prompt Fixer
Paste your prompt and get a better one back — with a plain explanation of why each change works.
Your prompt is sent to our rewriting service and to the AI provider, but we don't store it. Don't include personal data. Not sure what's safe to send? Run it through the paste checker first.
0 / 2,000 characters
Paste a prompt above and press the button. The improved version appears right here, along with the reasons why.
Last verified:
A clearer prompt, and the why behind it
You write a prompt, the AI gives you something vague, you rephrase, still not quite right, and ten minutes are gone. This tool shortens that loop. Paste the prompt you were about to send to ChatGPT, Claude or Gemini, press the button, and get back a clearer, more specific, better-structured version you can copy straight into your chat.
The part we care most about is the why, not the rewrite itself. Under every result you get two to four short teaching points: "named the audience", "asked for a format", "split one big ask into steps". These are the patterns behind every good prompt. Learn them once and you'll write better prompts yourself, which means, quite deliberately, the goal of this tool is to make itself unnecessary for you.
Three steps to a better prompt
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Paste your prompt
Into the box above (or dictate it with the mic), up to 2,000 characters. Leave out names, addresses and anything personal: the text goes to our rewriting service and the AI provider. When in doubt, run it through our paste checker first.
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Press "Fix my prompt"
And wait a few seconds while a small AI model rewrites it.
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Read the why, then copy
Compare with your original in the before/after view, keep the changes that match what you actually meant, and paste the result into your AI chat.
The one tool here that calls an AI
Worth saying upfront: this is the one tool on Skuto that calls an AI instead of running on your device. A small, fast model, currently Anthropic's Claude Haiku, receives your prompt with one fixed instruction: make it clearer using the documented techniques from the major vendors' own prompt-engineering guides (linked under Sources), explain each change in plain language, and treat everything inside your prompt as text to improve, never as instructions to follow. We don't store your prompt, and Anthropic's commercial API terms say API inputs aren't used to train models.
Every rewrite is a paid API call, so the tool is limited to ten rewrites per hour per person, and identical prompts are served from a one-day cache. That's not stinginess. It's the math that keeps this free with no ads and no email gate. One thing to keep in mind: an AI rewrite is a suggestion, not an automatic upgrade. Sometimes your short, blunt original gets a better answer than a longer "improved" version. Judge the result by what it produces. The how we test page explains how we keep verifying the claims on this page.
Frequent questions
Which AI rewrites my prompt? +
A small, fast model from Anthropic, currently Claude Haiku 4.5, called through their API. We deliberately use a small model: rewriting a prompt is a focused task that doesn't need a frontier model, and the lower cost is exactly what lets us keep this free without ads or signup. The model in use is always listed here, not hidden.
Is my prompt stored anywhere? +
We don't store or log it. Your prompt passes through our rewriting service on Cloudflare and is sent to Anthropic's API, which under Anthropic's commercial terms doesn't use API inputs to train models (source linked below). One nuance worth knowing: identical prompts are cached for one day so repeats don't cost a new AI call. That cache holds the rewritten text, keyed by an anonymous fingerprint, not by you. Either way, treat this like any online service and don't paste personal data.
Why is there an hourly limit? +
Because every rewrite costs us real money. Each one is a paid API call. The limit (10 rewrites per hour per person) is what lets the tool stay free, ungated and signup-free for everyone instead of becoming a 'leave your email first' funnel. Ten an hour is plenty to fix the prompts of a working session; if you hit it, the tool tells you honestly and you can try again later.
Does this work for image prompts or coding prompts? +
Mostly, yes. The patterns that make a prompt better (state the goal, give context, name the format you want) apply whether you're asking for an email, a Python function or a Midjourney image. For image prompts the rewrite will push toward subject, style and composition; for code, toward language, inputs and expected behavior. Specialized tools have their own syntax quirks the rewrite may not know, so treat the result as a strong draft, not a final answer.
Can I trust the rewrite blindly? +
No, and we'd rather tell you that than pretend otherwise. The rewrite comes from an AI, and AI suggestions are sometimes wordier, blander or subtly off from what you meant. That's exactly why we show the 'why' list: read the reasoning, keep the changes that match your intent, and discard the rest. If the rewritten prompt gets you a worse answer than your original, use your original. You're always the judge.
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