SparkLumina
AI-Powered Collaborative Whiteboard

Focus your ideas.
Explain everything.

Real-time whiteboard collaboration with AI drawing, step-by-step teaching, and intelligent board agent. Built on Excalidraw. Open Source.

app.sparklumina.com

SparkLumina

Everything you need to teach and create together.

Collaborative Whiteboard

Real-time sync with infinite canvas and live cursors.

Learn more

AI Smart Drawing

Describe your idea, AI draws it on the canvas.

Learn more

AI Teaching

Step-by-step problem solving with TTS and interactive Q&A.

Learn more

Board Agent (ExAgent)

Chat with AI to operate canvas elements: create, move, resize, and style.

Learn more

Recording & Playback

Capture sessions, replay events, and export video.

Learn more

How SparkLumina works

01

Create

Open a room and start drawing on the infinite canvas.

02

Collaborate

Invite students to join. AI helps explain problems step by step.

03

Present

Record sessions, replay and export for async learning.

See SparkLumina in action

Collaboration

Room Interaction

Create a room via Socket.IO, share the room ID, and collaborate with live cursors and real-time element sync on a shared infinite Excalidraw canvas.

Read more
Creative

Illustration Drawing

Use AISidebar to describe what you want — AI streams ExcalidrawElementSkeleton shapes onto the canvas with smart layout.

Read more
Creative

Journal & Planner

Combine freehand drawing with AI-generated decorative elements to create hand-drawn journals and planners.

Read more
View all showcases

Join the community

128
Stars on GitHub
24
Forks on GitHub
v0.1.0
Latest Release
MIT
License

Latest from the blog

—

Introducing SparkLumina v1.0

Five core features ready: collaborative whiteboard, AI smart drawing, AI step-by-step teaching, Board Agent (ExAgent), and session recording — all built on Excalidraw with real-time Socket.IO sync.

2026-02-285 min read

—

How AI Drawing Works: From Text to Canvas

A deep dive into streaming ExcalidrawElementSkeleton generation, audio-visual sync with TTS, and how AI-drawn elements are sanitized and applied to the shared canvas in real-time.

2026-02-255 min read

—

Building ExAgent: A Chat-Driven Canvas Controller

How we designed a streaming AI agent that creates, moves, resizes, and styles Excalidraw elements through natural conversation — with context-aware actions and undo support.

2026-02-206 min read
View all posts

Open Source. Free Forever.

Focus your ideas. Explain everything. Start creating and teaching now.