Skip to content

LOCAL AI CANVAS · AGENT-DRIVABLE

A Lean Canvas with a real local AI coach. Your idea stays on your laptop.

Nine boxes. One page. Three offline agents that interrogate the canvas. And every AI tool you already use can read it.

Onboarding, Critic, and Explorer agents run in your browser or on your Ollama daemon. The DOM contract and .leancanvas file format are published — agents like Claude, Codex, or Cursor can read and operate your canvas without anyone else seeing it.

For founders pairing with AI — without handing over the idea.

린 캔버스가 아홉 개의 칸 안에서 하는 일.

린 캔버스는 한 페이지로 된 비즈니스 모델입니다 — 문제, 해결책, 독창적 가치 제안, 채널, 고객 세그먼트, 부당한 우위, 핵심 지표, 비용 구조, 수익원. 30 페이지짜리 사업계획서를, 창업자가 "아이디어가 통하는지"를 알기 위해 실제로 답해야 하는 아홉 가지 질문으로 대체합니다.

Totally Lean 은 당신의 브라우저 안에서 캔버스를 굴립니다. 계정 없음. 서버 없음. 데이터는 로컬 저장소에 머뭅니다. 세 개의 로컬 AI 에이전트가 기입을 돕고, 90 초짜리 음성 피치 생성기가 캔버스를 "처음 보는 사람에게 건넬 수 있는 것"으로 바꿉니다.

"시작"을 클릭하면 몇 초 안에 편집 — 가입 없음, 이메일 없음, 팀 워크스페이스 없음. 누군가를 끌어들이고 싶으면 URL 로 공유하세요. 사본을 원하면 JSON 으로 내보내세요.

창업자들이 같은 캔버스를 다른 각도에서 짜는 방식.

같은 아홉 개의 칸을, 서로 다른 순간을 위해 짠 모습. 지금 당신의 상황에 맞는 것을 고르세요.

Frequently asked

Can Claude, Codex, or Cursor operate this canvas for me?
Yes. Totally Lean publishes an operating manual for AI agents at /agent.txt — a public document describing the canvas data model, stable DOM selectors, keyboard shortcuts, and rules agents should follow. Any browser-driving agent (Claude for Chrome, Codex Chrome extension, Operator-class tools) can read the manual and operate the canvas through documented affordances. The agent talks to your browser, not to us — your canvas never reaches a server. The .leancanvas JSON file format gives agents a structured read/write channel as well.
What do the three local AI agents do? Why three?
Three different conversations help at different stages of writing a canvas. Onboarding interviews you when the canvas is blank. Critic challenges what you've written — weak Problem statements, vague Customer Segments, hand-wavy Unfair Advantages. Explorer brainstorms adjacencies you haven't considered. Each holds a structured written conversation about the canvas; none overwrites it directly. All three run on your machine — WebGPU in your browser or your own Ollama daemon.
Is the AI really local? Where does the model actually run?
Two paths. (1) WebGPU — model weights download once and cache in your browser; inference runs on your GPU. (2) Ollama — your own daemon running locally; the browser talks to it via localhost. Neither sends canvas content to any server we operate. The default behavior is fully offline.
Can I read or write the .leancanvas file with my own tools?
Yes. The format is documented at /file-format with a JSON Schema (Draft 2020-12). Open it in a text editor, parse it with any JSON library, edit it programmatically — versioned, stable, agent-friendly. The format is the same shape the editor uses internally; no proprietary lock-in layer between what you see and what gets exported. If Totally Lean disappears, your canvases stay readable forever.

A Lean Canvas with a real local AI coach. Your idea stays on your laptop.

가입 없음, 서버 없음, 이메일 없음. 에디터를 열고 스케치를 시작하세요.