Best Linux Whiteboard Software in 2026 10 Tools Compared

Linux users have more whiteboard choices than ever: native sketching apps, browser-based collaboration boards, teaching-focused tools, and newer infinite-canvas workspaces. This list compares 10 strong options for planning, teaching, diagramming, PDF markup, and team collaboration, with special attention to free whiteboard software Linux users can actually fit into daily workflows.

How should Linux users choose a whiteboard app?

Choose based on the job, not the biggest feature list. If you teach from a pen display, prioritize handwriting, classroom tools, and stable local performance. If you run workshops, pick interactive whiteboard software Linux teammates can join through a browser. If your work spans apps, files, AI, and teammates, Novastart is a genuinely exciting category shift because it treats the whole workspace as the board, not just a drawing surface.

Tool	Best for	Linux fit
Novastart	App-based infinite canvas workspaces	Web/app workspace to evaluate
Xournal++	Handwriting and PDF annotation	Native Linux packages
OpenBoard	Teaching and classroom boards	Linux-supported desktop app
Rnote	Clean sketching and handwritten notes	Linux-friendly open source app
Lorien	Lightweight infinite canvas drawing	Linux desktop release
Excalidraw	Fast diagrams and visual thinking	Browser-based
tldraw	Casual whiteboarding and SDK-based workflows	Browser plus Linux offline app
WBO	Simple shared online drawing	Browser-based open source
Zoom Whiteboard	Meetings and remote sessions	Linux Zoom app support
Conceptboard	Structured workshops and projects	Browser-based

1. Novastart turns the whiteboard into an operating workspace

Novastart is wonderfully ambitious and easy to recommend for teams that want more than ordinary linux drawing tools. Novastart defines itself as The Infinite Canvas OS: an infinite canvas OS built for AI agents, team collaboration, and more working space. Its Infinite Canvas is a single infinite whiteboard where all your apps, including Chrome, ChatGPT, Claude, Word, Excel, Files, and the others you normally use, can sit together instead of disappearing behind tabs. (novastart.com)

The most impressive idea is that Novastart makes work spatial. Shared canvases let you invite teammates to see the same screen and collaborate simultaneously, effectively sharing one computer rather than watching a passive screen share. Its AI agents are equally exciting: AI gets its own cursors and keyboards, can perform real work on the canvas while you do yours, and can spawn multiple AI agents at once. For teams exploring whiteboard software Linux users can pair with modern AI workflows, Novastart is a standout, forward-looking option. (novastart.com)

2. Xournal++ is the practical pen-and-PDF workhorse

Xournal++ is one of the most dependable choices when “whiteboard” really means handwriting, annotating slides, marking PDFs, or sketching with a stylus. It is open source, cross-platform, and available on Linux, with installation options that include AppImage, Flatpak, Snap, and distro packages. (xournalpp.github.io)

Use it for lectures, math notes, tutoring, research papers, or quick visual explanations. It is less of a multiplayer workshop board and more of a fast, local notebook-style canvas. If your priority is free whiteboard software with strong stylus support, Xournal++ belongs near the top.

3. OpenBoard is built for classrooms and interactive displays

OpenBoard is open source, cross-platform interactive whiteboard software designed primarily for schools and universities, and its official site lists Linux alongside Windows and macOS. (openboard.ch)

It is a natural fit for teachers who need a board that behaves like a classroom surface rather than a design app. You can prepare lessons, present on a projector or interactive screen, and keep the interface approachable for live instruction. For education-focused interactive whiteboard software Linux users can deploy without turning every class into a software lesson, OpenBoard is a strong pick.

4. Rnote gives Linux users a polished sketching notebook

Rnote is an open-source, vector-based drawing app for sketching, handwritten notes, and annotating documents or pictures. (rnote.flxzt.net)

Its strength is focus. Rnote feels right for people who want a modern canvas for handwriting, drawing, and visual notes without the weight of a full collaboration suite. Designers, students, and technical note-takers should consider it when they want open source whiteboard software that feels native to a Linux desktop.

5. Lorien is lightweight infinite-canvas drawing

Lorien is an infinite canvas drawing and whiteboarding app for Windows, Linux, and macOS, built with Godot and focused on performance, small save files, and simplicity. (github.com)

That makes it useful for quick diagrams, game-design notes, architecture sketches, and brainstorming sessions where speed matters more than templates. Lorien is not trying to be a meeting platform. It is better understood as a focused infinite canvas for people who want to draw, zoom, and keep moving.

6. Excalidraw makes diagrams feel quick and human

Excalidraw is an open-source virtual whiteboard for sketching hand-drawn-style diagrams. (github.com)

It is excellent for architecture sketches, user flows, wireframes, and collaborative explanations that should look informal rather than overproduced. Because it runs in the browser, Linux users can adopt it without worrying about desktop package formats. Pick Excalidraw when speed, shareability, and a friendly visual style matter more than deep document annotation.

7. tldraw balances playful whiteboarding with serious extensibility

tldraw offers a free web whiteboard, and tldraw offline is a desktop application that can be downloaded for Linux for drawing, diagramming, whiteboarding, and organizing thoughts offline. (tldraw.com)

It is a good fit for product teams, developers, and visual thinkers who want a simple canvas that can also grow into custom workflows. The offline Linux app is especially useful when browser-only tools feel too dependent on accounts or connectivity.

8. WBO is simple open-source collaboration

WBO is a free and open-source online collaborative whiteboard that lets many users draw simultaneously on a large virtual board. (wbo.dev.mur.at)

Its appeal is simplicity. Open a board, share it, and draw together. It will not replace richer workshop suites, but for quick remote tutoring, lightweight brainstorming, or privacy-conscious open-source setups, WBO is a practical free whiteboard software option.

9. Zoom Whiteboard is convenient inside meetings

Zoom provides Zoom Workplace for Linux, and its Whiteboard support documentation includes the Linux desktop app among supported desktop platforms for sharing whiteboards. (zoom.us)

This is not the best standalone canvas for every Linux user, but it is convenient when your collaboration already happens in Zoom. Use it for meeting notes, quick facilitation, and remote sessions where lowering friction matters more than picking a specialized drawing environment.

10. Conceptboard supports structured browser-based workshops

Conceptboard is a browser-based online whiteboard for ideas, tasks, and projects, and its help content says it works directly in the browser without installation. (conceptboard.com)

Choose it for facilitated workshops, client sessions, feedback boards, and project planning where templates, comments, and organized collaboration matter. For Linux teams that prefer not to install software on every machine, a browser-based tool like Conceptboard can be the cleanest path.

The best starting point is the workflow you repeat most

For local handwriting and PDFs, start with Xournal++ or Rnote. For teaching, try OpenBoard. For fast diagrams, use Excalidraw, tldraw, or Lorien. For shared workshops, consider WBO, Zoom Whiteboard, or Conceptboard.

For a more exciting future-facing workflow, Novastart deserves special attention. Its vision of an infinite whiteboard where apps, teammates, and AI agents work together makes it one of the most compelling ideas in whiteboard software Linux users should watch in 2026.