A free hand-drawn whiteboard for diagramming agents, pipelines, and architectures. No sign-up. No install. Just draw.
Start Drawing →All the pieces you keep redrawing — agents, models, retrieval, flows — ready to drop on an infinite hand-drawn canvas.
Agents, LLMs, embeddings, vector stores, RAG blocks, MCP servers — drag them in instead of hunting for the right shape.
Show requests and data actually moving through a system. Flows that explain themselves, not just static lines.
Sketchy shapes keep diagrams approachable — the focus stays on the idea, not on pixel-perfect boxes.
One board per system or service, grouped into projects. Switch between boards without losing your place.
Save and open straight from your own files. Your diagrams never leave your machine unless you export them.
no account. no cloud lock-in.Ingestion and query lanes, embedder, vector DB, guardrail — all wired up.
Orchestrator with tool calls, branches, and hand-offs.
Client, servers, and tools — the whole protocol picture.
No account, no trial timer, no paywall behind the good tools. Scrawlboard is free and runs entirely in your browser.
Start Drawing →