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draw.io is a JavaScript, client-side editor for general diagramming.
Claude Code skill: Khan Academy style explainer videos. A pen draws while a voice explains. Free, local, no API keys.
The MIT-licensed infinite-canvas whiteboard SDK. An open-source tldraw alternative — no license fee, free for commercial use. React, React Native, and plain JS.
Lightweight collaborative Whiteboard / Sketchboard
Proactive associative memory for DSH: system-prompt recall before the model speaks, three-layer auto-consolidation, skill crystallization, and Astra-style context management - handoff ledgers, PLAN whiteboard, water-level sensing. Local-first, model-agnostic, zero deps. 主动联想记忆+Astra 式上下文管理:自动唤回/自动沉淀/技能固化/交接账本与白板跨窗口续命/水位感知。
Online collaborative Whiteboard that is simple, free, easy to use and to deploy
Spacedeck, a web based, real time, collaborative whiteboard application with rich media support
Visual conversation map for DeepSeek Harness — sessions as cards on a whiteboard: drag to arrange, double-click to chat, draw an edge to fork with injected context. ADHD-friendly spatial memory. · DSH 可视化对话地图
A free-form offline whiteboard for Windows, Linux, Android and macOS — pen, sticky notes, shapes, and Word / PowerPoint / PDF import you can write straight on top of. No account, no cloud. Hand a board to another computer on your own wifi if you want to; off by default.
面向 CG 与视觉创作的本地参考素材库与无限白板 | Local reference library and infinite whiteboard.
🚀 Open-source, self-hosted P2P WebRTC video conferencing for fast, private real-time communication. Create browser-based meeting rooms with no downloads or time limits, plus screen sharing, chat, whiteboard, recording, and collaboration.