Skip to the tool

Generate a Lean Canvas for Software

A free lean canvas generator: map your software idea on nine boxes, and see which ones don't hold yet.

Lean Canvas5 questions

Who has the problem, and what you'd build. E.g. a meal planner for couples on different diets.

Who pays for it?
Where are you today?
What would you charge?Optional

A guess is fine. The canvas tests it.

'Better UX' and 'first mover' don't count. Empty is honest.

Your canvas appears here, weak points named. Free, no sign-up. AI can make mistakes: check before you act.

How It Works

1

Describe Your Idea

One sentence: who has the problem, and what you'd build.

2

Answer 4 Short Questions

Who pays, where you are, a price guess and what a copycat can't copy.

3

Get Your Canvas, Plus the Pushback

A call, your riskiest assumption, weak points with fixes and the nine boxes. Download PDF or JSON.

Read about the principles behind every Varstatt discovery tool👉

Where Lean Canvas Sits in Discovery

Is the model worth testing? Lean Canvas maps your idea onto nine boxes and names the ones that don't hold yet.

Use this when: You have a software idea and want its weak spots before you build.

Who it's for: Solo founders, indie hackers and product engineers.

Nine Boxes Filled, the Weakest Named

It fills all nine boxes from your answers, then names the weakest and says why. It reads your answers; it doesn't research demand, rivals or prices.

Most Canvases Are Empty Boxes

Most canvases are guesses filled in to feel productive. This one pushes back: who has the problem, how they cope today, why they'd switch. "Everyone" and "better UX" don't pass.

Revenue Before Build

If you can't say who pays and roughly how much, the canvas says so now, not after six months of code.

Frequently Asked Questions

A one-page business model for an early-stage product, in nine boxes. Ash Maurya adapted it from the Business Model Canvas in 2010.

Problem, customer segments, unique value proposition, solution, channels, revenue streams, cost structure, key metrics and unfair advantage.

Lean Canvas, for an unvalidated software idea. It swaps partners, activities, resources and relationships for problem, solution, key metrics and unfair advantage.

Something a rival can't copy or buy: domain expertise, exclusive data, a network effect, distribution someone else built. "Better UX" doesn't count.

Start with who has the problem and how they cope today. This lean canvas generator drafts all nine boxes from a few short answers and flags the weak ones.

Not by us. Your answers go to the AI for the run, then live only in this tab; a reload clears them. Download the PDF or JSON to keep the result.

Where To Next

Next discovery step:Competitive Analysis

Principles behind it:Find the Core, Worth Building

When you're ready to build:PoC in 2 WeeksMVP in 6 Weeks

Built & Maintained by Varstatt

Varstatt is a one-person product studio run by Jurij Tokarski, product engineer since 2011. These tools are free and open — no signup, no catch.