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Excalidraw vs Swagger UI

Excalidraw logo

Excalidraw

Technology

Virtual whiteboard for sketching hand-drawn like diagrams

From
Free
Free plan
Yes
Full reviewWebsite
Swagger UI logo

Swagger UI

Developer Tools

Interactive API documentation generated from OpenAPI specs

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Excalidraw advanced features (unlimited private scenes/folders, cloud storage, access management, presentations, extended AI, team management) are gated behind Excalidraw+; Swagger UI only as good as the specification: a thin OpenAPI file produces thin documentation
  • They diverge on capability: Excalidraw covers Hand-drawn style diagrams, Swagger UI covers OpenAPI rendering.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Excalidraw and Swagger UI actually diverge.

Attributes where Excalidraw and Swagger UI differ
AttributeExcalidrawSwagger UI
Pricing modelUnknownOpen source, no licence fee
PlatformsWebWeb, Self-hosted, Docker
CategoryTechnologyDeveloper Tools
Founded2020Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Excalidraw

  • Hand-drawn style diagrams
  • Real-time collaboration
  • Infinite canvas
  • Shape libraries
  • Text support
  • Image import
  • Export options
  • Keyboard shortcuts

Only in Swagger UI

  • OpenAPI rendering
  • Try it out
  • Schema display
  • Self-hostable

What people use each for

The jobs each tool is most often brought in to do.

Excalidraw

  • Wireframing and diagrammingnot Swagger UI
  • Real-time collaborative whiteboardingnot Swagger UI
  • Hand-drawn-style illustrations for docs and decksnot Swagger UI
  • Embedding a whiteboard into third-party apps via the npm packagenot Swagger UI
  • Visual planning and note-takingnot Swagger UI

Swagger UI

  • Publishing API documentation that stays in step with the specificationnot Excalidraw
  • Letting developers try endpoints before writing any client codenot Excalidraw
  • Internal API discovery across teamsnot Excalidraw

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Excalidraw

  • Advanced features (unlimited private scenes/folders, cloud storage, access management, presentations, extended AI, team management) are gated behind Excalidraw+
  • Free hosted version persists via scene links/local storage rather than a managed multi-scene workspace
  • Self-hosting the full collaborative stack requires standing up a websocket server and storage beyond the npm editor package
  • No official native desktop or app-store mobile apps - web/PWA only

Swagger UI

  • Only as good as the specification: a thin OpenAPI file produces thin documentation
  • Default presentation is dated compared with modern documentation tools
  • Large specifications render slowly and become hard to navigate
  • Try it out against production needs care with authentication and CORS, and is often disabled as a result

Pricing, plan by plan

Excalidraw

Free
  • Excalidraw+$6/month
    • Unlimited private scenes and folders
    • Cloud storage
    • Access management

Swagger UI

Free
  • Swagger UIFree
    • Full functionality
    • Commercial use permitted
    • Community support

Which should you pick?

Choose Excalidraw if

  • You need hand-drawn style diagrams.
  • You want to start without paying.
  • You also want real-time collaboration.
Excalidraw review

Choose Swagger UI if

  • You need openapi rendering.
  • You want to start without paying.
  • You work on Web, Self-hosted, Docker.
  • You also want try it out.
Swagger UI review

Questions people ask

Is Excalidraw or Swagger UI better?
Neither clearly leads. Excalidraw starts at Free and Swagger UI at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Excalidraw or Swagger UI?
Excalidraw starts at Free and Swagger UI at Free.
Does Excalidraw or Swagger UI run on more platforms?
Excalidraw runs on Web. Swagger UI runs on Web, Self-hosted, Docker.
Can I use Excalidraw for free?
Both have a free tier, so you can try either at no cost before committing.
What is Excalidraw best used for?
Excalidraw is most often used for wireframing and diagramming, real-time collaborative whiteboarding, hand-drawn-style illustrations for docs and decks, embedding a whiteboard into third-party apps via the npm package. Of those, wireframing and diagramming and real-time collaborative whiteboarding are not what Swagger UI is typically brought in for.
What can Excalidraw do that Swagger UI cannot?
Excalidraw covers Hand-drawn style diagrams, Real-time collaboration, Infinite canvas, Shape libraries. Swagger UI covers OpenAPI rendering, Try it out, Schema display, Self-hostable.

Answered from the vendors’ own pages

Excalidraw: Is Excalidraw free?

Excalidraw appears to be a free drawing application available at no cost to users. The website does not display information about pricing tiers or premium features, suggesting it is offered as a free service.

Source
Swagger UI: Is Swagger UI free?

Yes, open source under the Apache 2.0 licence. SmartBear sells commercial SwaggerHub separately.

Excalidraw: Does Excalidraw offer paid plans?

No pricing tiers or paid upgrade options are mentioned on the Excalidraw website, which indicates the service is available entirely free without commercial pricing models.

Source
Swagger UI: What is the difference between Swagger and OpenAPI?

OpenAPI is the specification format; Swagger is the toolset around it, including Swagger UI. The specification was renamed from Swagger to OpenAPI in 2016.

Swagger UI: Can Swagger UI make real API calls?

Yes, through its try-it-out control, though authentication and CORS configuration often mean it is disabled for production APIs.

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