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Bad Prompt In. Great Prompt Out.
Prompt Mate is a free AI prompt enhancer: paste a rough idea, pick ChatGPT, Claude, Gemini or an image model, and get back a structured prompt in about four seconds.
3 free today · private by default
Your finished prompt streams in here — with a note on what changed.
The difference
Same thought.
A different result.
Most disappointing AI answers were disappointing questions. Prompt Mate fixes the input — the model was fine all along.
What you typed
write a blog post about remote work
7 words. No audience, no length, no shape. The model has to guess everything — so it guesses average.
What Prompt Mate sends
You are an experienced workplace-culture writer for a B2B SaaS audience. Write a 1,200-word blog post on remote work for people managers at 50–500 person companies who already run hybrid teams. Cover: 1. What actually changed about management — not the 2020 talking points 2. Three concrete practices that measurably improve async output 3. The failure modes teams hit in year two, and how to spot them early Constraints: - Open with a specific scenario, not a statistic - No clichés: "new normal", "unprecedented", "the great resignation" - Include one counter-argument and answer it honestly Output: Markdown — H1, four H2 sections, two-sentence takeaway box.
How it works
Three moves. About four seconds.
Type it badly
One line is fine. Half a thought is fine. You never need to learn what a “system prompt” is.
Say where it’s going
Claude, ChatGPT, Gemini or an image model, each gets the structure it responds to best. XML for one, Markdown for another, one dense line for pictures.
Paste and go
A finished prompt plus a short note on what changed, so the pattern rubs off on you the more you use it.
What you get
Made for the prompt-all-day crowd.
Fast enough to stay in flow. Careful enough to trust with the prompts you’re paid to write.
Fast enough to stay in flow
Streaming output on AI hosted models. The rewrite appears while you read it.
Shaped for the destination
Claude gets XML sections. ChatGPT gets Markdown steps. Image models get one dense descriptor line.
Every prompt kept
Searchable history with favorites, the one that worked last month is one search away.
Templates with fill-in fields
Save a winner, wrap the variable bits in {{braces}}, reuse it in seconds.
Three depths of control
Quick tightening or a full brief with constraints and evaluation criteria, per prompt, your call.
Your prompts stay yours
Row-level security in Postgres. Nobody else reads your history, and nothing trains on it.
Use cases
One tool. Ten playbooks.
A coding prompt and an image prompt need entirely different things. Prompt Mate knows which is which before you do.
Coding
Versions, edge cases and the exact output shape.
Writing
Audience, voice, structure and a banned-words list.
Image prompts
Subject, lighting, lens, palette, style — comma-separated.
Research
Scope, sources, how to treat conflicts, flagged uncertainty.
Marketing
Offer, channel, audience pain and several distinct angles.
Data
Schema, dialect, stated assumptions, method explained.
Agents & personas
Reusable system prompts with real boundaries.
Learning
Level, goal, worked examples and common misconceptions.
From the Vault
Prompts people actually use.
Ready-made prompts by role, free to copy, each written to be filled in. Take one as it is, or run it through the enhancer and make it yours.
Start here
Prompting that holds up.
Which frameworks are research and which are checklists, why AI gives bad answers, and how to brief each model, written by the people who build the enhancer.
FAQ
Fair questions.
Is it really free?
Yes. 3 a day without an account, unlimited free with one, and no credit card. Pro is $9 a month for comprehensive detail, unlimited saved templates, favorites and full-text search.
Is Prompt Mate a prompt generator?
It is a prompt enhancer, which is a prompt generator that starts from your rough idea instead of a blank form. Type one line about the task, pick where it is going, and the result is a complete prompt with a role, the context, constraints and an output format. Most people use it that way: the line in is the brief, the prompt out is what they paste.
How is Prompt Mate different from promptmate.io and promptmate.ai?
They are different products that share a name. Prompt Mate at promptmate.cloud is a free prompt enhancer and Chrome extension for ChatGPT, Claude and Gemini. promptmate.io is a batch-automation tool and promptmate.ai is a prompt organiser; we are not affiliated with either.
How does the Team plan work?
$29 a month covers five people in total — you and four others. One person subscribes and invites the rest by email or by sharing a link; nobody else needs a card. Everyone gets the whole paid feature set, plus a template library the team shares and usage analytics for the group. If the subscription ends, nothing is deleted — everyone keeps their own prompts and templates.
Does it answer my prompt, or rewrite it?
It rewrites it. You get back a prompt to paste into whichever AI you were already using; Prompt Mate never tries to do the task itself. With the Chrome extension the rewrite happens inside the ChatGPT, Claude or Gemini input box, so there is nothing to paste.
Which AI does the rewriting?
Prompt Mate runs on Claude, OpenAI, Gemini and Groq models, and we pick the active one on our side so you always get the strongest available. You do not need an API key or an account with any provider.
Do you train on my prompts?
No. Prompts are stored so you can find them again, protected by row-level security, and never used to train anything.
What if the rewrite is worse?
Hit Retry for a fresh rewrite, or use "Improve further": it asks the questions your prompt left open and folds your answers into a second pass. Nothing reaches your AI until you paste it, so a bad rewrite costs you one click.
Can I cancel any time?
Yes, from the billing portal in Settings. You keep the paid plan to the end of the period, then drop to Free. Your history stays.