draw.io has stayed free for a decade because Confluence pays its bills

87 puts draw.io in our Outstanding band, which we define as being able to run real work on it free indefinitely. Within this category only Inkscape at 91 scores higher, and the two get there the same way: no paid tier for the product being scored, so generosity sits at 95 and freedom at 96.

draw.io holds rank 7 on our design category list while scoring second on this page, and the reason is the same one that lifts Inkscape. Rank weighs the whole job across a category led by UI design and collaborative whiteboarding. draw.io does structured diagramming, and on that narrower job feature depth scores 84, ahead of every other free option here.

One caveat on sentiment, which sits at 70 on G2 4.4 and Capterra 4.6 (checked 24 July 2026). Because the editor has no paid tier, most of what is being rated is the free product, which makes these numbers more useful than most in this file. The caveat we will not skip is that the paid Confluence and Jira apps carry the same name, so some reviewers are describing those instead.

There is no quota to describe here, so the limits are all about fit and feel (as of July 2026).

Real-time co-editing only half works. It functions when files sit in a shared location like Google Drive, and it is clunky next to Miro or Penpot, where multiplayer editing is the architecture rather than a side effect of file storage. If two people need to be on the same diagram at the same time regularly, this is the weakest thing about draw.io.

The interface is dense and dated. New users meet a wall of panels. Next to tldraw or Excalidraw, which open into empty space and let you start, draw.io asks you to find things first. It rewards the time, and it does cost you time.

It is a diagram tool, not a workshop whiteboard. No sticky-note voting, no timers, no facilitation features. Freehand sketching is possible and awkward, because the tool wants straight lines and connectors.

Self-hosting is free and is still work. The Apache-2.0 web app can run on your own server, which is genuinely useful in security-conscious environments, and it means somebody maintains a deployment and applies its updates.

What is notably absent from this list: any limit on the number of diagrams, any account requirement, any watermark, any upsell inside the editor.

The standalone editor has no plans, no seats and no upgrade path, so there is nothing to compare a free tier against.

What draw.io sells is the draw.io apps for Confluence and Jira, distributed through the Atlassian Marketplace and priced there. Our data does not record those figures, and per our sourcing rule we would rather say so than copy a number out of a roundup, so check the Marketplace listing if your team is on Atlassian and wants diagrams embedded in pages.

The structural point matters more than the price anyway. Because the revenue comes from Atlassian customers, the free editor is not a funnel. Nobody is metering your diagram count to nudge you toward a plan, because there is no plan for you to be nudged toward. That is the same arrangement that keeps tldraw.com free (SDK licences) and Photopea free (ads), and of the three it is the one least visible to the user.

If your team already lives in Confluence, the paid app is the upgrade worth pricing. If it does not, you are simply done: the free editor is the whole product.

Yes. No account, no file limits, no paid tier for the editor, an Apache-2.0 licence you can self-host, and files that save to your own disk or your own Drive rather than to draw.io. There is very little left for the word free to be hiding.

Who this covers completely: anyone drawing software architecture, AWS and network diagrams, UML or ER models, documentation diagrams that need to live in a git repo next to the code they describe, and security-conscious teams whose files must never touch a vendor's servers. Who should look elsewhere: teams running facilitated workshops, where Miro's tooling is genuinely ahead, and anyone who needs two people editing the same diagram live, where the shared-folder approach will frustrate you.

For collaborative sketching instead of structured diagramming, Excalidraw's free plan is the natural companion, and plenty of teams use both. Free draw.io alternatives covers the swaps, and best free design and whiteboarding tools ranks the category.