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Technology · head to head

Confluent Cloud vs Excalidraw

Confluent Cloud logo

Confluent Cloud

Technology

The data streaming platform built on Apache Kafka, delivered as a fully managed cloud service

From
Free
Rated
-
Full reviewWebsite
Excalidraw logo

Excalidraw

Technology

Virtual whiteboard for sketching hand-drawn like diagrams

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Confluent Cloud requires understanding of eCKU (Elastic Confluent Unit) billing; Excalidraw advanced features (unlimited private scenes/folders, cloud storage, access management, presentations, extended AI, team management) are gated behind Excalidraw+
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Confluent Cloud and Excalidraw actually diverge.

Attributes where Confluent Cloud and Excalidraw differ
AttributeConfluent CloudExcalidraw
Pricing modelusage-basedUnknown
FoundedUnknown2020

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

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 Confluent Cloud

Nothing recorded that Excalidraw does not also cover.

Only in Excalidraw

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

What people use each for

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

Confluent Cloud

  • Apache Kafka event streaming and processingnot Excalidraw
  • Real-time data pipeline architecturenot Excalidraw
  • Multi-cloud event broker deploymentnot Excalidraw
  • Stream processing and analyticsnot Excalidraw
  • Microservices data synchronizationnot Excalidraw

Excalidraw

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

Where each one falls short

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

Confluent Cloud

  • Requires understanding of eCKU (Elastic Confluent Unit) billing
  • Data in/egress costs add $0.014-$0.050 per GB
  • Storage costs of $0.03-$0.08 per GB-month
  • Minimum commitment recommended for cost optimization

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

Pricing, plan by plan

Confluent Cloud

Free
  • BasicFree
    • Free first eCKU
    • Then $0.14 per eCKU-hour
    • 99.5% uptime
  • Standard$385/month
    • $0.75 per eCKU-hour
    • 99.99% uptime with 2+ eCKUs
    • Infinite storage
  • Enterprise$895/month
    • $1.75-$2.25 per eCKU-hour
    • Private networking
    • GBps+ scaling
  • Freight$2300/month
    • $2.25 per eCKU-hour
    • Specialty logging tier
    • Highest throughput requirements

Excalidraw

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

Which should you pick?

Choose Confluent Cloud if

  • You want to start without paying.
Confluent Cloud review

Choose Excalidraw if

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

Questions people ask

Is Confluent Cloud or Excalidraw better?
Neither clearly leads. Confluent Cloud starts at Free and Excalidraw at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Confluent Cloud or Excalidraw?
Confluent Cloud starts at Free and Excalidraw at Free.
Does Confluent Cloud or Excalidraw run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Confluent Cloud for free?
Both have a free tier, so you can try either at no cost before committing.
What is Confluent Cloud best used for?
Confluent Cloud is most often used for apache kafka event streaming and processing, real-time data pipeline architecture, multi-cloud event broker deployment, stream processing and analytics. Of those, apache kafka event streaming and processing and real-time data pipeline architecture are not what Excalidraw is typically brought in for.
What can Confluent Cloud do that Excalidraw cannot?
Excalidraw covers Hand-drawn style diagrams, Real-time collaboration, Infinite canvas, Shape libraries.

Answered from the vendors’ own pages

Confluent Cloud: How much does Confluent Cloud cost?

Confluent Cloud pricing starts free on Basic tier with $0.14 per eCKU-hour, Standard at $0.75 per eCKU-hour (~$385/month base), Enterprise at $1.75-$2.25 per eCKU-hour (~$895/month base), and Freight specialty tier at $2.25 per eCKU-hour (~$2300/month).

Source
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
Confluent Cloud: Is there a free tier for Confluent Cloud?

Yes, the Basic tier is free with one eCKU credit included. Additional usage is billed at $0.14 per eCKU-hour, plus data transfer and storage fees apply.

Source
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
Confluent Cloud: What additional fees does Confluent Cloud charge?

Beyond eCKU hours, Confluent charges data in/egress at $0.014-$0.050 per GB and storage at $0.03-$0.08 per GB-month. Costs vary by tier and region.

Source
Confluent Cloud: Does Confluent offer discounts for higher usage?

Yes, volume discounts are negotiated upfront based on annual consumption estimates. Annual commitments allow flexible cross-product allocation with guaranteed cost savings.

Source
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