7 self-hosted Microsoft Whiteboard alternatives

Excalidraw is an open-source collaborative whiteboard for sketching hand-drawn style diagrams, wireframes, and flowcharts with real-time sharing.

128.5k stars14.6k forksMITlast commit 27 Jul 2026Actively maintained

All-in-one, privacy-focused workspace that merges docs, whiteboards and databases with real-time collaboration and multimodal AI assistance.

70.9k stars5.1k forkslast commit 28 Jul 2026Actively maintained

Logseq is a privacy-first, open-source knowledge management app for networked notes, tasks, and collaboration using local Markdown or Org-mode graphs.

44.1k stars2.7k forksAGPL-3.0last commit 24 Jul 2026Actively maintained

Browser and desktop diagram editor for flowcharts, UML, wireframes and network diagrams with cloud storage integrations and offline apps.

7.1k stars1.1k forksApache-2.0last commit 26 Jul 2026Actively maintained

WBO is a lightweight, real-time collaborative whiteboard where multiple users can draw simultaneously, with persistent boards and optional JWT-based access control.

2.6k stars482 forksAGPL-3.0last commit 14 Jul 2026Actively maintained

Real-time collaborative mind-mapping web app with import/export, sharing via links/QR, undo/redo and Postgres storage. Runs with a TypeScript/NestJS backend and Angular frontend.

478 stars41 forksMITlast commit 19 Jun 2026Actively maintained

Sticky is a digital sticky-note board for organizing ideas, collaborating in real time, and syncing across devices with customizable notes and drag-and-drop layout.

169 stars23 forksMITlast commit 23 Jan 2026Slowing down