NO ACCOUNT · NO SERVER · NO ROOM FULL OF PEOPLE
The Lean Canvas that never leaves your laptop.
Nine boxes. One page. Yours, in every way that matters.
Everything runs on your machine. No signup, no upload, no team workspace. The AI is local. The data is local. When you're ready to share, you'll know.
For founders who don't want their idea on someone else's server.
Why your business model shouldn't live on someone else's server
The pitch is supposed to be the part of your company you're willing to share. The business model is the part you're not.
Most online canvas tools blur that line. You sign up with email. You agree to a 47-page terms-of-service. Your nine boxes get stored on a server in a region you didn't pick. They show up in usage analytics, in customer-success dashboards, in the training data for the next version of someone's recommendation engine. None of this was advertised on the landing page. None of this is your business.
Totally Lean takes the position that your business model is yours. The canvas lives in your browser's local storage. The AI runs on your machine via WebGPU or your own Ollama daemon. There is no server side to this product; we cannot read your canvas because we never see it.
When you want to share, you pick what to share. A URL. A JSON export. A PNG. Each one carries exactly what you put in it, nothing else.
Sometimes a business is best protected by being too boring to host. Yours might be one of those.
What a Lean Canvas does in nine boxes.
A Lean Canvas is a one-page business model — Problem, Solution, Unique Value Proposition, Channels, Customer Segments, Unfair Advantage, Key Metrics, Cost Structure, Revenue Streams. It replaces a 30-page business plan with the nine questions a founder actually has to answer to know if the idea works.
Totally Lean runs the canvas in your browser. No account. No server. The data lives in your local storage. Three local AI agents help you fill it; a 90-second voiced pitch generator turns the canvas into something you can hand to a stranger.
When you click Start, you're editing in seconds, no signup, no email, no team workspace. Share via URL when you want someone in. Export JSON when you want a copy.
Other ways founders frame the same canvas.
The same nine boxes, framed for different moments. Pick the one that fits where you are right now.
- NOT A SPREADSHEET · NOT A DECKThe Lean Canvas for the business plan you'll actually open.
- BEFORE THE DECKA Lean Canvas you write before you write the pitch.
- FOR THE 11 PM IDEAThe Lean Canvas you draft the night you have the idea.
- TYPE · HEAR · SHIPNine boxes. Ninety seconds. The Lean Canvas with a voiced pitch.
Frequently asked
- Where does my canvas data go?
- Your browser's localStorage. There is no server-side database. The maker can't read what you write because there's no place where what you write would be readable. The site is a static export.
- How does the AI work without a server?
- Two paths. Either WebGPU (in your browser, model weights downloaded once) or your own Ollama daemon (running on your machine). Cloud LLM APIs are not used by default. The AI sees your canvas because it's running on your machine, not because we sent it to anyone.
- How do I share my canvas without an account?
- Three options. (1) URL share — the canvas is encoded into the URL itself, anyone with the link sees the same canvas. (2) JSON export — download a .leancanvas file. (3) PNG export — share an image. None of these require an account on either side.
- What happens if Totally Lean disappears?
- Your data is on your laptop. The .leancanvas file format is documented and JSON-Schema-versioned. Open it in any text editor and you have your canvas back. You don't need this domain or this tool to read what you wrote.
The Lean Canvas that never leaves your laptop.
No signup, no server, no email. Open the editor and start sketching.