The missing link between your idea and your AI builder
Turn your app idea into a build-ready PRD in one chat.
Primer interviews you about what you want to build, then hands you a finished PRD and a copy-paste “Big Bang” prompt to one-shot the whole app with AI.
Free · Sign in with Google · No credit card
Three ways to start
However it feels easiest to get the idea out.
Chat it out
Answer a few friendly questions, one at a time. Primer pulls the idea out of your head.
Paste your notes
Already have a brain-dump? Drop it in and Primer fills the gaps with smart follow-ups.
Fill the form
Prefer structure? Knock out a short form and Primer takes it from there.
One conversation in → a plan + prompt out
1 · Tell Primer your idea
A guided interview that keeps going until there's enough to work with.
2 · Get a polished PRD
A clear, well-written plan you can edit inline — or just tell Primer to change.
3 · Copy the Big Bang prompt
One tap copies a complete build prompt. Paste it into your AI coding tool and go.