Rant-to-prompt engine
Dump the mess.
Get a perfect prompt.
Speak or type a rant. Promptnator compiles Role, Tone, and Audience for ChatGPT, Claude, Cursor, and 20+ other targets. Same engine in the browser, via API, or MCP.
3 gens/day after signup · Yearly plans save 2 months
MCP + API
Use Promptnator inside ChatGPT, Claude, and Cursor.
One key. Same credits as this site. A polish tool agents can call, so you do not have to leave the app you are already in.
How it works
One loop. Mess in, prompt out, proof after.
Compile
A rant becomes Role, Tone, Audience, and a copy-ready prompt for the app you actually use.
Prove
Run A/B in Test Bench. Same model. See what the polished prompt changes.
Remember
Your stack stays on. The second generation already sounds like you.
Test Bench
Don't just copy it. See if it works.
After Magic Polish, A/B your raw rant against the compiled prompt on the same model. That is the step most prompt tools skip.
Pricing
Pro
Get 2 months free vs paying monthly
Daily habit plan
- 500 gens / month
- 100 Test Bench runs / month
- System Studio + Prompt Protection
- Unlimited Vault · refine chips · score
- Priority access
From people using it
After the blank box
I used to paste a blob into ChatGPT and then spend ten minutes fixing the role. Here I just talked for a minute and the structure was already there.
Jess
Writes landing pages for a skincare brand
The A/B thing is boring in a good way. Same model, my messy note vs the polished one. You can see why the second answer is better.
Nikhil
Ships a small SaaS on nights
I ranted on the walk home. Sat down, copied the prompt, done. Not magic. Just less typing.
Aisha
PM, mostly Slack and docs
Second run already sounded like us. I didn't set up a pack. It just remembered the tone. That's the bit I didn't expect.
Tom
Content, two-person team