Best Free Infinite Canvas Apps 2026 (Truly Free)

What "Free" Really Means for Canvas Apps

"Free" is a slippery word in software. Some apps are free forever and open source; some are free with generous limits; some are free only until you hit a three-board cap or a 14-day trial. This guide ranks infinite canvas apps by how genuinely free they are for real use in 2026 — favoring open-source projects and tools whose core experience never asks for a card.

We've been honest about the catches, because a "free" app that blocks export or caps you at three boards isn't free for serious work. Below are the canvas apps you can actually use long-term without paying.

Not sure which fits your workflow? The OmniCanvas App Finder narrows it down in under a minute, and the best infinite canvas apps guide ranks paid options too.

Quick Comparison

1. Excalidraw

Best for: Diagrams, wireframes, and architecture sketches — free forever

Excalidraw is the gold standard for genuinely free canvas work. It's open source, runs in any browser, and stores drawings locally by default — no account required. The hand-drawn aesthetic is iconic, the shape and arrow tools are excellent, and real-time collaboration is built in for free. For software diagrams and quick visual thinking, nothing beats the price-to-power ratio.

The free version has no cloud account or note-organization layer; the paid Excalidraw+ adds team workspaces and saved scenes, but you never need it for solo work.

• Open source and free forever
• No account required; local storage by default
• Hand-drawn style with rich shape and arrow tools
• Free real-time collaboration

Pricing: Free (optional Excalidraw+ for teams)

2. tldraw

Best for: Fast, fun sketching and whiteboarding

tldraw is another fully open-source infinite canvas, focused on smooth, low-friction drawing. It loads instantly, the drawing engine is delightful, and multiplayer rooms are free. Developers also love it as an embeddable canvas library. For a no-strings whiteboard you can open and start scribbling in, it's hard to beat.

Like Excalidraw, it's a drawing tool rather than a note system — there are no folders, tags, or search.

• Open source and free
• Exceptionally smooth drawing engine
• Free multiplayer rooms
• Embeddable in other apps

Pricing: Free

3. OmniCanvas

Best for: A free spatial second brain, not just a drawing surface

OmniCanvas is the only tool on this list that's free and a full spatial note system. Its free tier is free forever — $0, no trial clock — and includes unlimited notes, folders, tags, full-text search, rich-text cards, and Excalidraw-powered drawing on one infinite plane. It syncs across a native macOS app and the web, so your canvas follows you between devices at no cost.

The one thing the free tier meters is AI meeting transcription (3 per month); the canvas, notes, real-time collaboration, and sync stay free forever, and paid Pro ($8/mo) and Power ($16/mo) plans only raise the transcription limit. So unlike a temporary free-for-now app, it's genuinely the most capable free option if you want organized notes rather than loose sketches.

• Permanent free tier ($0 forever), full canvas feature set
• Rich text cards plus freehand drawing
• Folders, tags, and full-text search
• Native macOS app and web sync

Pricing: Free tier ($0 forever); Pro $8/mo, Power $16/mo for higher AI transcription limits; 30-day Power trial, no credit card.

4. Apple Freeform

Best for: Apple users who want a free, native canvas

Freeform is free on every Apple device and integrates beautifully with iCloud and the Apple Pencil. You get sticky notes, shapes, media, and real-time collaboration with other Apple users — all with zero setup. For casual boards on a Mac, iPad, or iPhone, it's a genuinely free, genuinely good option.

The limitation is organization: no folders, tags, or in-board search, so it doesn't scale to a knowledge base.

• Free and native across Apple devices
• Apple Pencil and iCloud sync
• Real-time collaboration (Apple users)
• Clean, fast, zero-setup

Pricing: Free

5. Obsidian Canvas

Best for: Local-first note mapping at no cost

Obsidian is free for personal use, and its Canvas feature lets you arrange Markdown notes spatially on an infinite plane. Your data stays in local files you fully own, which makes it a favorite of the privacy-minded. If you already keep an Obsidian vault, Canvas adds spatial visualization for free.

The canvas itself is basic — no freehand drawing, limited zoom polish — and it's a secondary feature rather than the core app. Paid add-ons (Sync, Publish) exist but aren't required.

• Free for personal use
• Local-first, fully owned Markdown files
• Arranges notes on a canvas with connections
• Extensible via community plugins

Pricing: Free for personal use

6. Microsoft Whiteboard

Best for: Anyone with a free Microsoft account

Microsoft Whiteboard is free with any Microsoft account and integrates with Teams. It offers inking, sticky notes, templates, and collaboration. For people already in the Microsoft world — or anyone who just wants a free, no-fuss shared whiteboard — it does the job.

It's less polished than dedicated canvas apps and leans toward team use, but the price is right and the basics are solid.

• Free with a Microsoft account
• Inking, sticky notes, and templates
• Teams integration and collaboration
• Cross-platform (Windows, Apple, Web)

Pricing: Free with a Microsoft account

7. Miro (Free Tier)

Best for: A taste of the leading team whiteboard

Miro's free tier gives you three editable boards with the full collaboration toolkit — templates, sticky notes, voting, and integrations. For a one-off workshop or to evaluate the platform, it's a useful free option.

The three-board cap is the catch: it's free to try, not free to live in. Heavy users quickly hit the wall and need a paid plan.

• Full collaboration features on the free tier
• Huge template library
• Real-time multi-user editing
• Integrations with Jira, Slack, and more

Pricing: Free for 3 boards

How to Choose

Decide what "free" needs to do for you:

• Diagrams and sketches, no account: Excalidraw or tldraw — open source and free forever.
• An organized free second brain: OmniCanvas's permanent free tier is the only free option with folders, tags, and search.
• Apple-native simplicity: Apple Freeform.
• Local-first data ownership: Obsidian Canvas.
• A free shared team board: Microsoft Whiteboard, or Miro's free tier if three boards is enough.

If you want freehand drawing, prioritize Excalidraw, tldraw, or OmniCanvas. If you want note organization, OmniCanvas and Obsidian lead. For platform-specific advice, see the best infinite canvas apps for iPad and our best whiteboard apps ranking.

Frequently Asked Questions

What is the best free infinite canvas app in 2026?

For diagrams and sketches, Excalidraw and tldraw are the best truly free, open-source options. For a free spatial note system with folders and search, OmniCanvas is the strongest pick, with a free tier that's free forever.

Which infinite canvas apps are open source?

Excalidraw and tldraw are fully open source and free. OmniCanvas uses the open-source Excalidraw engine for its drawing tools but is itself a hosted app with a permanent free tier.

Are "free" canvas apps really free, or is there a catch?

It varies. Excalidraw, tldraw, Apple Freeform, and Obsidian (personal use) are free with no meaningful catch. Miro's free tier caps you at three boards, and OmniCanvas's free tier is free forever — paid Pro/Power plans only add higher AI meeting-transcription limits. Always check the limits before committing a big project.

What's the best free canvas app for note-taking specifically?

OmniCanvas, because it's the only free option built as a spatial note system rather than a drawing tool — you get rich-text cards, folders, tags, and full-text search. Obsidian Canvas is a strong free alternative if you prefer local-first Markdown.