Prompt
Improver.
Turn vague prompts into clear, structured instructions. Describe what you want, and we'll write or rewrite the prompt so AI tools give you better answers.
Before and after
From one vague line to a prompt that leaves nothing to guess.
AI tools fill every gap in a prompt with a guess. Prompt Improver closes the gaps: a clear first instruction, the steps in order, placeholders for your details and the exact shape of the answer.
Two ways to start
Start from an idea, or from a prompt you already use.
Write a new prompt
Leave "Your current prompt" empty and describe the task. You get a complete prompt written from scratch.
Improve your prompt
Paste the prompt you use and say what to change. You get it back with the change made, and the rest of your prompt kept.
What changes
What every improved prompt gets right.
A clear first line
The prompt opens with one sentence that says exactly what to do, with no header or preamble.
Your details kept
Your goal, variables, examples and rules stay in, so nothing you wrote gets lost.
An explicit output format
Length, structure and style are spelled out, so the answer comes back in the shape you need.
Thinking before answers
When a task needs reasoning, the prompt asks the model to work it through before it concludes.
Examples only when they help
Examples are added when they remove doubt, with placeholders like [INPUT] for anything long.
Nothing to clean up
No boilerplate, disclaimers or code fences. Copy it and paste it straight into ChatGPT, Claude or Gemini.
Step by step
How to improve a prompt.
-
01
Say what the prompt should do
Describe the task in plain words: what to produce, who it's for and any rules it must follow.
-
02
Add your current prompt, if you have one
Paste a prompt you already use to improve it, or leave it empty to start fresh.
-
03
Improve, copy and repeat
Click Improve prompt and copy the result. To refine it, paste it back in as your current prompt with the next change.
Is this tool free to use without an account?
Yes. You can improve prompts without an account or credit card, up to a daily limit. Upgrade for more.
Do I have to enter an existing prompt?
No. "Your current prompt" is optional. Leave it empty, describe what you need the prompt to do, and a new prompt is written from scratch.
Will it change what my prompt does?
No. It keeps your goal, details, variables and examples. For a small, specific change it makes only that change; for bigger requests it also tidies the wording, the order and the output format.
Can I keep improving the same prompt?
Yes. Paste the improved prompt into "Your current prompt", describe the next change and run it again. Every version stays on the page, newest first, labelled v2, v3 and so on.
Which AI tools can I use the prompt in?
Any general-purpose chat model, like ChatGPT, Claude or Gemini. The prompt is plain text with simple headings, so you can paste it anywhere.
What makes a good prompt?
A good prompt says what to do in its first line, then gives the details, the rules to follow and the format of the answer. It avoids vague verbs like "make it better", defines success ("clear, under 200 words") and gives the model just enough context to work without guessing.
Should I share sensitive information?
No. Your prompt is sent to an AI model to be rewritten, so leave out passwords, personal details and anything confidential. Use placeholders like [CLIENT NAME] instead.
Pro tip
Hang tight, we're gathering fresh insights for you.