What if GitHub was built by Netflix?
Turn “What if X built Y?” into exact visual product concepts instantly. Enter any product and any brand style get high-quality UI mockups that visually combine them.
No design tools needed · 5 monthly free credits · Public concepts
Inspire yourself with styles from the world's best products
Everything you need to
explore product concepts
A structured product imagination engine with source normalization, prompt building, template selection, and multi-provider generation.
Structured Generation
Not a generic image prompt. Every concept passes through source normalization and structured prompt building.
Multi-Provider Routing
Routes across OpenAI, fal.ai, and Replicate for quality, cost, and reliability.
10+ Templates
Dashboard, Mobile App, Landing Page, Checkout, Social Feed, Analytics, Settings, Profile, Marketplace, Editor.
Credit-Based System
Charge per successful variant. Free credits for public concepts, paid credits for private generation.
Edit & Remix
Edit any generated output or remix concepts with new sources. Each variation creates a new record.
Async Generation
BullMQ-powered background jobs with real-time status updates. No waiting, no timeouts.
How it works
From prompt to polished concept in four simple steps.
Enter Sources
Source 1: the product to reimagine. Source 2: the brand style to apply.
Pick Template
Choose from 10+ templates like Dashboard, Mobile App, or Landing Page.
Generate
AI normalizes sources, builds prompts, and generates variants asynchronously.
Use & Share
Download, edit, remix, or share your concepts. Public or private.
Friends of WhatIfBy
See what creators and designers are saying about their experience.
“This is insane. I generated Spotify styled like Twitter in 30 seconds.”
“Finally a tool that makes product ideation actually fun.”
“My portfolio went viral after posting WhatIfBy concepts.”
Subscription credits, with top-ups when you need them
Each variant costs 5 credits. Free and subscription credits expire by period; top-ups are extra, non-expiring credits for active paid subscribers.
A monthly trial allowance for public concept generation.
- 5 credits every user-month
- Public concepts by default
- All templates
- Download images
For creators exploring concepts every week.
- 150 credits per month
- Private concepts by default
- Top-up access
- Edit and remix
For builders generating product directions regularly.
- 350 credits per month
- Private concepts by default
- Better credit value
- Edit and remix
For heavier creative exploration and frequent iteration.
- 900 credits per month
- Best subscription value
- Top-up access
- Edit and remix
Top-ups from $5 to $5000 are available for active paid subscribers. Failed variants are not charged.
Ready to explore
what could be?
Start with 5 monthly free credits. No design tools needed. Generate your first concept in under 2 minutes.
Get Started Free5 free credits monthly · No credit card required · Public concepts