Community Sharing

Export Formats

SparkLumina supports multiple export formats so you can share your work wherever it fits:

• PNG: Raster image of the current canvas view. Ideal for embedding in slides, documents, social media, or thumbnails. Preserves colors and layout at your chosen resolution.

• SVG: Vector graphics. Scalable without pixelation, perfect for print, web, and further editing in tools like Illustrator or Inkscape. Text and shapes remain crisp at any size.

• .excalidraw: Native project format. Contains all elements, bindings, and metadata. Share the file and others can open it in SparkLumina or vanilla Excalidraw to view, edit, or remix. No information is lost.

• MP4: Video recording of a session. Captures canvas changes over time plus audio (TTS, optionally microphone). The frontend records WebM; the backend converts to MP4 via ffmpeg. Share on YouTube, course platforms, or social media for async viewing.

Room Link Sharing

For real-time collaboration, share a room link (e.g., https://your-app.com/?room=abc123). Anyone with the link can join and collaborate immediately—no account required. Socket.IO keeps everyone in sync with live cursors and real-time element updates. Use room links for co-design sessions, classroom activities, or distributed team brainstorming.

Recorded Teaching Sessions

Record a teaching session (LectureSidebar step-by-step, AI drawing with TTS, or your own narration) and export as MP4. Students who couldn’t attend live can watch the recording later. The step-by-step flow, voice narration, and visual annotations make recordings suitable for async learning and review. Share the MP4 via link, LMS, or video platform.

Async Learning

Combine exports for flexible learning: share PNG/SVG diagrams for quick reference, share .excalidraw files for hands-on exploration, and share MP4 recordings for full walkthroughs. The community can consume content in the format that suits them—quick peek, deep edit, or full replay.