The fastest way to turn a business idea into a testable plan.
Build your Lean Canvas —
in 5 minutes flat
Describe your idea in plain English. LEANSpark asks the right questions, fills out your canvas, and tells you what to test first.
Build your canvas free →
No credit card required.
From the creator of Lean Canvas — used by 1M+ entrepreneurs worldwide.
Before
On your own
- Google “how to fill out lean canvas”
- Guess what goes in each box
- No idea if your assumptions are right
→
With LEANSpark
The AI-powered way
- Tell the AI your idea in plain English
- It asks clarifying questions and builds your canvas
- It stress-tests each box and tells you what to validate first
Most founders spend weeks second-guessing their idea. LEANSpark gives you a clear plan in one conversation.
Start your canvas →Free — under 5 minutes.