Prototypes that actually work
With Lumi, a prototype is a real app instead of static screens. Build it by chatting, share a live link for feedback, and change it in minutes.
Why prototype with Lumi
Real interactions
Buttons, forms and navigation work, so people can try the idea instead of imagining it.
Real data when you need it
Add a database and sign-in so the prototype behaves like the final product.
Share a live link
Publish in one click and send the link to users, teammates or investors.
Fast iterations
Turn feedback into a new version in minutes by describing the change.
How it works
- 1
Describe the flow
Explain the screens and what users should be able to do.
- 2
Try it
Click through the preview and point at anything you want to change.
- 3
Share and iterate
Publish the link, collect feedback and update the prototype.
Frequently asked questions
Can I start from a design or screenshot?
Yes. Attach an image of a design or an existing page, and Lumi uses it as a reference.
Can the prototype become the real product?
Often, yes. A Lumi prototype is real code, so you can keep building on it instead of starting over.
Who is this for?
Product managers, designers, founders and anyone who wants to test an idea with real users quickly.



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