SparkLumina
SparkLumina is a free, open-source collaborative whiteboard for teaching, brainstorming, and visual creation.
What SparkLumina is
SparkLumina is a free, open-source collaborative whiteboard for teaching, brainstorming, and visual creation. In a browser room, people work on a shared Excalidraw canvas with live cursors and real-time updates, and guests can join without signing up. AISidebar turns natural-language descriptions into editable shapes. LectureSidebar presents problems through sequential steps, equations, diagrams, explanatory text, text-to-speech, and interactive questions and answers. Xchat lets an AI agent draw and narrate on the canvas, with session-segment recording. Recordings can be replayed or exported as MP4, while canvas work can be exported as PNG, SVG, Excalidraw, or MP4. LLM settings for BrushGenius, DeepExplainar, and Xchat are stored in localStorage rather than uploaded. Generated shape data is sanitized before conversion to native Excalidraw elements. Configurable LLM providers and TTS options are described, including MiniMax TTS and custom TTS bridges.
Good
- Free open-source MIT-licensed plan
- Real-time shared canvas collaboration
- AI-generated editable diagrams
- Interactive teaching explanations
- Exports PNG, SVG, Excalidraw, and MP4
Watch out
- Accounts are only planned
- Persistent rooms are only planned
- Team workspaces are only planned
- Mobile apps are only planned
Who it suits
SparkLumina suits educators and learners who want browser-based collaborative drawing, explanation, and teaching tools. Guest access also fits participants who need to join without creating an account.
Verdict
SparkLumina combines collaborative whiteboarding with AI drawing, teaching explanations, narration, and recording. Its current web focus and planned roadmap items matter when deciding whether it fits a classroom or creative workflow.
Plans and prices
From SparkLumina's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Open source · MIT license |
The facts
Each one read from SparkLumina's own pages, with the date it was checked.
What it does
- Access
- The room interaction page says users can join a room through a browser without signing up.checked 8 Oct 2026
- AI configuration
- The feature guide says LLM settings are shared by BrushGenius, DeepExplainar, and Xchat, and stored in localStorage rather than uploaded.checked 8 Oct 2026
- AI drawing
- AISidebar turns natural-language descriptions into editable shapes on the Excalidraw canvas.checked 8 Oct 2026
- AI teaching
- LectureSidebar presents problems as sequential steps with equations, diagrams, explanatory text, text-to-speech, and interactive Q&A.checked 8 Oct 2026
- Audience
- The homepage describes SparkLumina as made for educators and learners worldwide.checked 8 Oct 2026
- Board agent
- Xchat lets users ask an AI agent to draw and narrate on the canvas, with recording available for the session segment.checked 8 Oct 2026
- Collaboration
- People can create browser-based rooms and collaborate on a shared canvas with live cursors and real-time updates.checked 8 Oct 2026
- Exports
- Canvas work can be exported as PNG, SVG, Excalidraw, or MP4.checked 8 Oct 2026
- Integrations
- The feature guide describes configurable LLM providers and TTS options, including MiniMax TTS and custom TTS bridge configuration.checked 8 Oct 2026
- Limits
- The v1.0 announcement lists user accounts, persistent rooms, team workspaces, LMS integrations, and mobile apps as planned roadmap items.checked 8 Oct 2026
- Product
- SparkLumina is an AI-powered collaborative whiteboard for teaching, brainstorming, and visual creation.checked 8 Oct 2026
- Recording
- Recorded sessions can be replayed and exported as MP4.checked 8 Oct 2026
- Security
- The illustration guide says generated shape data is sanitized before conversion to native Excalidraw elements.checked 8 Oct 2026
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