WhiteboardsCAN I VIBECODE
Excalidraw+?
BUILD FIRST
- One defined user and a repeatable end-to-end job
- A small, clear data model with sign-in only if it is genuinely needed
- Loading, empty, error, and success states that make the workflow feel complete
LEAVE FOR LATER
- Large integration marketplaces
- Multi-region scale and enterprise administration
- Every power-user setting from the established product
RESEARCH NOTES
What this tool actually does.
Excalidraw+ is the commercial subscription tier of the open-source Excalidraw whiteboard. It provides a cloud-synced infinite canvas with hand-drawn style diagrams, plus features beyond the free editor: generative AI assistance, presentation mode, link-based collaboration invites, voice hangout and screensharing, user accounts, workspace teams with user management, collections organization, saved-on-server personal and workspace libraries, and a REST API plus an MCP server for AI-tool integration. Pricing is tiered (Free, Extended, Collaborate, Teams) based on these capabilities. It positions itself as a simple collaborative workspace for teams and enterprises, and offers self-hosting for data sovereignty.
RESEARCHED BUILD PROMPT
Give this to your coding agent.
Build a focused replacement for Excalidraw+’s core workflow: a web app where users open an infinite hand-drawn-style canvas, start drawing immediately without an account, then save scenes to the cloud with an account. Implement the key Excalidraw+ differentiators: real-time multi-user editing via shared link, a simple presentation mode that steps through frames, personal and workspace shape libraries saved server-side, and a lightweight AI assistant that can generate or modify diagrams from text prompts. Use React + TypeScript for the editor, Canvas2D for rendering with hand-drawn path rendering (roughened strokes), Yjs with a WebSocket provider for real-time collaboration, a REST API (Node.js/Postgres) for scenes, collections, teams, and library persistence, and an LLM API for the AI feature. Include user auth, workspace/team management, and link-based invites (read/write permissions). Also provide a basic MCP server exposing read/edit diagram tools to AI clients, and a minimal REST API for scene CRUD. Do not copy the Excalidraw brand, its exact UI layout, or its codebase; create an original name, design language, and implementation. Explicitly out of scope: voice/video hangouts, offline PWA sync, mobile native apps, advanced permissions/SSO, and enterprise self-hosting. Deliver a README with setup instructions, architecture overview, environment variables, and known limitations (e.g., AI prompt limits, CRDT conflict edge cases, no end-to-end encryption).