AI Prompt Rewriter

The free AI prompt rewriter that fixes vague prompts in one click.

Paste any prompt — vague, rushed, or just half-formed — and the AI prompt rewriter returns a sharper version with audience, format and constraints baked in. Works for ChatGPT, Claude, Gemini, Perplexity and Midjourney.

4.9 / 5 average ratingFree foreverNo account requiredWorks in ChatGPT, Claude, Gemini & more
See the rewriter in action

From draft to production-ready prompt.

Three real prompts, three one-click rewrites. The rewriter preserves your voice and adds the structure modern LLMs respond to.

Before

write a tweet about our product

After — enhanced

Write 3 tweet variants (max 240 chars) announcing AI Prompt Fixer to a developer audience. Lead each with a concrete pain point, end with a soft CTA, no hashtags, no emoji.

Before

summarize this for me

After — enhanced

Summarize the article below for a busy product manager. 4 bullets, each ≤ 18 words, ordered by business impact. Skip context the PM already has; surface only decisions and trade-offs.

Before

translate this

After — enhanced

Translate the marketing copy below from English to Brazilian Portuguese. Keep the conversational, slightly playful tone. Do not translate product names. Provide a second variant if any phrase has more than one strong translation choice.

Before

fix my code

After — enhanced

Review the TypeScript function below for a Next.js 15 App Router project. Identify runtime errors, type-safety issues, and React 19 anti-patterns. Return a corrected version with a 1-line rationale per change. No style nits.

What the rewriter changes

Six rewrites the AI does automatically.

Adds structure

Turns a sentence into a brief with role, task, constraints and expected output — without filler.

Inserts audience

Detects the likely reader (developer, founder, student, child) and names it explicitly.

Specifies format

Adds the requested shape: word count, bullet count, table columns, code language.

Pins constraints

Adds explicit guardrails: avoid jargon, no fluff, no fabricated references, token budget.

Promotes examples

If you mention “like X” or “in the style of Y”, formats it as a proper few-shot example.

Preserves your voice

Keeps the parts of your prompt that show personality or domain knowledge. The rewrite reads like you, only sharper.

Model-aware

Switches rewrite profile for ChatGPT, Claude, Gemini, Midjourney — same prompt, model-tuned output.

Conversation-aware

Reads the last 6 turns of context so “make it shorter” still rewrites with the thread in mind.

Plain English only

No syntax to learn. Write naturally; the rewriter handles the structure.

Composable

Pair with prompt templates: pick a template, rewrite it, ship it. Saves the editing pass.

Works everywhere you prompt

One AI prompt rewriter for every model.

7+
Major LLMs supported

ChatGPT, Claude, Gemini, Perplexity, Grok, Mistral, Llama.

2
IDEs supported

Native extension for VS Code 1.85+ and Cursor via Open VSX.

~700ms
P50 rewrite latency

Cached prompts return faster than you can re-read them.

0
Prompts retained

In-memory only. No training data, no telemetry on prompt content.

AI Prompt Rewriter FAQ

Common questions.

Yes. The live demo and browser extension are free forever. You do not need an account to use the AI prompt rewriter on aipromptfixer.com.
Yes. The rewriter operates at the prompt layer, so the improved prompt produces better output from ChatGPT, Claude, Gemini, Mistral, Llama, Perplexity and any other LLM.
A paraphraser swaps synonyms. An AI prompt rewriter restructures the prompt to add the elements LLMs respond best to — audience, format, constraints, examples and success criteria — without changing your intent.
Yes. The rewriter is tuned to add structure around your intent rather than replace your wording. You can also reject the rewrite and only use the per-dimension score feedback.
No. Prompts are processed in-memory and dropped immediately after the response is returned. We never retain prompt text or train on it.

Rewrite your next prompt in one click.

Try the AI prompt rewriter on a real prompt right now — same engine the extension uses inside every major AI chat.