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Whiteboard by Lumin

ChatGPT plugin

Your ideas. Your device.

View in ChatGPT directory

Draw and refine sketches, diagrams, and visual explanations on an editable Excalidraw canvas. In Codex desktop, save ordinary .excalidraw files in your chat workspace and reopen the same file later. Manual drawing and agent edits use that file, with stale-save protection. The hosted service supplies the editor and does not store your boards. Browser and mobile use manual file import and download; automatic chat-local saving requires desktop file support. No Whiteboard account is required. Cross-device sync and multi-user collaboration are not included.

Featured
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not on the featured shelf

Movement

From our daily snapshots over the last 30 days.

Rank by placement

#8057of 11,36023places up24h860places up7d
#7,971#8,229#8,487#8,745#9,003Oct 6Oct 12Oct 18Oct 24Oct 30Nov 4

Rank in Productivity

#1884of 2,8849places up24h216places up7d
#1,863#1,928#1,993#2,058Oct 6Oct 12Oct 18Oct 24Oct 30Nov 4

In its category

How this plugin compares with others in the same category. Positions are counted within the category, not across the whole directory.

Productivity1,884th of 2,884 by placement
#PluginPosition7d
1882Cosmos Video Agent#8053120places up
1883Trackside#80541,102places up
1884Whiteboard by LuminThis page#8057860places up
1885Paul#8058723places up
1886Goodterm#8065652places up

All 2,884 Productivity plugins

Example prompts

  • “Create a whiteboard and save it with this chat.”
  • “Refine the diagram on my open whiteboard.”
  • “Turn this explanation into a simple flowchart.”

Skills

  • whiteboard

    Operate Whiteboard by Lumin to create, open, save, and edit local .excalidraw files in a Codex chat. Use whenever a task reads or changes a board, including edits to the board already open.

  • whiteboard-layout

    Arrange and tidy diagrams on Whiteboard by Lumin with readable spacing, alignment, groups, and connectors. Use for crowded boards, flowcharts, system diagrams, and visual organization; preserve the meaning and scope of existing content.

  • whiteboard-storytelling

    Turn an explanation, process, comparison, or idea into a visual story on Whiteboard by Lumin. Use when deciding what to show and how readers should follow it, rather than for file operations or a small label edit.

  • whiteboard-style

    Style Whiteboard by Lumin drawings with Excalidraw's handwritten Excalifont, readable text, restrained color, and consistent strokes. Use for new diagrams or a requested visual polish; respect an existing board's style during small edits.

Categories
Made by
Lumin · Website
Sign-in
On Install
Capabilities
Interactive, Write
Availability
Available
Version
0.2.1
Created
October 13, 2026
More info
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