Lean Canvas builder

Map your whole business on one page — then export it.

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Problem

The top 1–3 problems your customers struggle with today.

Customer Segments

Who exactly you build for. Name your early adopters.

Unique Value Proposition

One clear line on why you're different and worth buying.

Solution

The simplest thing you could build to solve each problem.

Channels

How you'll reach customers — the free and paid paths to them.

Revenue Streams

How you make money — pricing, models, and revenue lines.

Cost Structure

What it costs to run — fixed and variable, per month.

Key Metrics

The few numbers that tell you the business is working.

Unfair Advantage

What can't be easily copied or bought by competitors.

Nothing saves or leaves your browser — export before you close.

Canvas ready to export

What each box is really asking

A blank canvas is intimidating; a good canvas is nine small, answerable questions. The tool above spells out each one in plain language so you are never staring at a jargon label wondering what belongs there. You do not fill the boxes left-to-right — the smart order starts with the people and their problem, moves to how you help and reach them, and leaves the money and metrics for last, once the shape of the business is clear.

The single most important box is the unique value proposition in the middle: one clear sentence on why a specific customer should pick you over doing nothing or picking a rival. If you can only fill one box well, fill that one — every other box either supports it or tests it.

Problem
The top 1–3 problems your customers struggle with today.
Solution
The simplest thing you could build to solve each problem.
Key Metrics
The few numbers that tell you the business is working.
Unique Value Proposition
One clear line on why you're different and worth buying.
Unfair Advantage
What can't be easily copied or bought by competitors.
Channels
How you'll reach customers — the free and paid paths to them.
Customer Segments
Who exactly you build for. Name your early adopters.
Cost Structure
What it costs to run — fixed and variable, per month.
Revenue Streams
How you make money — pricing, models, and revenue lines.

Lean Canvas vs. Business Model Canvas — which to use

Both are one-page, nine-box business snapshots, and this tool builds either one from the same grid — flip the toggle at the top. The difference is what they optimise for. The Business Model Canvas (Alexander Osterwalder, 2010) maps an established business's model: key partners, activities, resources, and customer relationships. It assumes you already know the business works and want to describe how the pieces fit.

The Lean Canvas (Ash Maurya, adapted from Osterwalder) swaps four of those boxes — partners, activities, resources, relationships — for Problem, Solution, Key Metrics, and Unfair Advantage. That makes it sharper for a brand-new idea where the biggest risk is that nobody has the problem or nobody will pay. If you are starting from scratch, use the Lean Canvas. If you are describing or refining a business that already has customers, the Business Model Canvas fits better. Neither is a business plan — both are the one-page version you sketch first and revise weekly.

Why one page beats a fifty-page plan

A canvas forces brevity, and brevity forces clarity. When your entire business has to fit in nine small boxes, you cannot hide a shaky assumption inside three pages of prose — it either survives one line or it does not. That is the point: the canvas is a thinking tool, not a document. You are meant to fill it fast, spot the box you cannot answer, and go find out.

It is also the fastest artifact to share. Hand a co-founder, mentor, or first hire a single page and they can react in minutes; hand them a fifty-page plan and they will nod politely and never read it. Export the PDF, put it in front of someone who will be honest, and let the empty and hand-wavy boxes tell you what to work on next.

Frequently asked questions

What is a Lean Canvas?

A Lean Canvas is a one-page business plan split into nine boxes: Problem, Customer Segments, Unique Value Proposition, Solution, Channels, Revenue Streams, Cost Structure, Key Metrics, and Unfair Advantage. Ash Maurya adapted it from the Business Model Canvas to focus on the risks that matter most for a new idea — whether the problem is real and whether people will pay. You sketch it in an afternoon and revise it as you learn.

What is the difference between a Lean Canvas and a Business Model Canvas?

Both are one-page, nine-box models. The Business Model Canvas uses Key Partners, Key Activities, Key Resources, and Customer Relationships — good for describing an established business. The Lean Canvas replaces those four with Problem, Solution, Key Metrics, and Unfair Advantage — better for a brand-new idea where the biggest unknown is whether anyone wants it. This tool builds either one; use the toggle at the top to switch.

In what order should I fill in the boxes?

Not left to right. For a Lean Canvas, start with Problem and Customer Segments (who hurts and how), then the Unique Value Proposition, then Solution and Channels, then Revenue Streams and Cost Structure, and finish with Key Metrics and Unfair Advantage. On mobile this tool walks you through that exact order; on desktop you can fill boxes in any sequence.

Is this Lean Canvas tool really free, with no sign-up?

Yes. There is no account, no email gate, and no watermarked upsell on the export. You fill in the boxes and download a branded PDF. The only branding on the PDF is a small SoGood.ai footer.

Do you save or see what I type?

No. The whole canvas runs in your browser — nothing you type is sent to a server, saved, or shared, and there is no autosave. Because nothing is stored, refreshing or closing the tab clears everything, so export your PDF before you close it.

Can I export or print my canvas?

Yes — export first, then print. The Export buttons build a branded, landscape PDF (or a PNG image) of your nine boxes — the full canvas on one page — generated in your browser the moment you click, so it always matches what is on screen. Open that saved file to print or share it. Printing this page directly with Ctrl+P would just print the surrounding website, not your canvas, so use the export instead.

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