Your agent's diagrams, live and editable.

Prompt (or image) → live Excalidraw diagram. Describe a diagram, or drop in a screenshot, and a clean, auto-laid-out Excalidraw board appears in your browser. Ask for changes and it updates live. It's a Claude Code skill, so it runs on your agent with no API key.

_{The wordmark above was drawn by exgram itself — see skills/exgram/assets/wordmark.exgram.json.}

_{↑ This was drawn by exgram itself, from a one-line prompt.}

npx skills add mamadoudicko/exgram --agent claude-code   # Claude Code
npx skills add mamadoudicko/exgram -g                     # globally, for every project
npx skills update exgram                                 # get the latest version later

Needs Node ≥ 18, and internet on first load (the board pulls Excalidraw from a CDN).

Skill page: skills.sh/mamadoudicko/exgram

Just ask:

"Diagram our auth flow." "Draw the orders database schema." "Here are my rough project notes, turn them into a diagram." (paste the notes) "Turn this screenshot into an editable diagram." (attach an image)

exgram draws a first version, opens a live board in your browser, and offers tweaks (colors, level of detail, layout). Keep chatting, every change re-renders in place, keeping your zoom and pan. When you're happy, export to .excalidraw / PNG / SVG. Several boards can be live at once; the home page lists them all.

Your boards are saved in ~/.exgram/workspace (set EXGRAM_WORKSPACE to change it). They live outside the skill folder on purpose, so running npx skills update exgram never deletes them.

• Raw notes → clean diagram — dump your messy project notes and exgram structures them into a tidy, labeled board.
• Architecture & infra — services, queues, data stores, color-coded by role.
• Flowcharts & state machines — steps, decisions, swimlanes.
• Database / ER schemas — tables, keys, relationships.
• Sequence diagrams & mind maps — for anything boxes-and-arrows can't place.
• Whiteboard photo → editable — snap a sketch, get a clean version you can keep editing.

• One sentence away. No editor plugin, no separate web app, no account.
• A real board, not an image. Hand-edit and export a live Excalidraw canvas.
• No API key. Runs on your agent, no per-token cost.
• Zero install footprint. Pure Node, no node_modules, no build step.

Spec format and internals are in SKILL.md; contributing in CONTRIBUTING.md.

MIT © 2026 Mamadou Dicko. Uses the open-source @excalidraw/excalidraw package; not affiliated with Excalidraw.