Lean Canvas Maker
Sketch a startup idea on one page. Ash Maurya's Lean Canvas swaps the Business Model Canvas's enterprise blocks (Key Partners, Activities, Resources) for the things that actually kill early-stage ventures: Problem, Solution, Key Metrics and Unfair Advantage. Auto-saves in your browser, exports as SVG, PNG, JSON or text.
Auto-saved in your browser's localStorage on this device only. Nothing is uploaded.
How to use this lean canvas maker
- Start with Problem and Customer Segments. Two specific problems for a specific segment beats five vague problems for 'everyone'.
- Write Problem in your customer's words, not yours. 'Manual invoice entry takes 3 hours/week' is real; 'inefficient workflows' is consultancy jargon.
- Fill Solution AFTER Problem — not before. Founders consistently invert this. If your solution shaped your problem statement, you're solving for the technology you wanted to build, not for the user.
- Be ruthless about Unfair Advantage. 'Hard work' and 'great team' don't count. If a well-funded competitor could copy it in 12 months, leave the box empty until you find a real one.
- Export as PNG for pitch decks, SVG for posters, or JSON to update after each round of customer interviews.
Frequently asked questions
What is the Lean Canvas?
A 9-block strategic template by Ash Maurya, adapted from the Business Model Canvas for early-stage startups. It swaps Key Partners, Activities and Resources for Problem, Solution and Key Metrics, and adds an Unfair Advantage block. The point: focus on the things that kill startups (no real problem, no traction, easily copied) rather than the things that worry mature companies.
Lean Canvas vs Business Model Canvas — which should I use?
Lean Canvas if you haven't validated your problem yet. BMC if your business model is clearer and you need to map the full operation (partners, activities, resources). Many startups go from Lean Canvas at idea stage to BMC after product-market fit. Don't try to use both at once — pick one per planning session.
What actually counts as an Unfair Advantage?
Something a well-funded competitor can't copy in 12 months. Insider knowledge from years in a niche, exclusive partnerships, network effects, a community of true fans, a patented process, proprietary data. 'Better design', 'great team', 'hard work' don't qualify — competitors can hire designers and recruit talent. If the box stays empty, that's information: keep looking.
When should I throw the canvas out and start over?
When customer interviews show your Problem is wrong. If 10 people in your target segment don't recognise the problem you wrote down, no amount of tweaking solution or channels will save it. Start over with a new Problem. A canvas is a hypothesis document — being wrong is the expected state, not failure.
What are the most common Lean Canvas mistakes?
Three classics: (1) Problem section lists features missing in competitor products instead of pains customers feel; (2) Customer Segment is too broad ('SMBs' instead of 'dental clinics with 2-5 staff'); (3) Channels skips the question of how segments will actually discover you, listing wishful-thinking distribution like 'PR' or 'partnerships'. Fix the segment first — most other problems collapse once it's specific.