Build apps by chatting.Fork to collaborate.
Describe what you want in plain words. The build engine reasons it out in front of you with extended thinking, writes the code, and runs the working app instantly — no setup, no deploy.
It's not autocomplete. It's a build engine that thinks.
Talk, don't type code
01Describe the app in your own words. Set an ask level — autonomous, normal, or careful — to decide how often it checks back.
Watch it reason
02It runs instantly
03Refine by chatting
04Real apps, not toys — they actually do things.
Collabby builds the images, stores the data, embeds the AI, and pulls in live public data — so what you ship actually works.
Recipe finder
Generated hero images
The AI generates each dish photo for you, cached by prompt.
Hydration tracker
Remembers your entries
A built-in data store keeps your entries — app-scoped, shared, no logins.
Support assistant
Chats with visitors
Embed an AI agent right inside your app — up to 10 text or image agents per app.
Every turn is a version you can return to.
Freeze one stable version and publish it to customers — while you keep iterating on the live draft. They get reliability; you keep momentum.
Mistakes are safe. Experiments are fearless.
No install. No servers. No deploy step.
From idea to a link you can send a customer — in one sitting, in one tab.
Your next app is one conversation away.
Describe it. Watch it think. Ship it.