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APIs · head to head

Hasura vs OpenEBS

Hasura logo

Hasura

APIs

GraphQL engine that instantly creates production-ready GraphQL API from databases

From
Free
Rated
-
OpenEBS logo

OpenEBS

Cloud

Open source container-attached storage for Kubernetes

From
Free
Rated
-

The short version

  • Each has a real cost: Hasura active model definition: model/command accessed more than 1,000 times monthly; OpenEBS there is no vendor on the other end of an incident unless you separately contract DataCore, so an outage at three in the morning is resolved by your own team and a public Slack channel.
  • They diverge on capability: Hasura covers GraphQL API, OpenEBS covers Replicated engine.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Hasura and OpenEBS actually diverge.

Attributes where Hasura and OpenEBS differ
AttributeHasuraOpenEBS
Pricing modelfreemiumOpen source, no licence fee
PlatformsWebLinux
CategoryAPIsCloud
Founded2017Unknown

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 Hasura

  • GraphQL API
  • Real-time subscriptions
  • Access control
  • PostgreSQL
  • MySQL
  • Webhooks
  • REST APIs
  • Cloud support

Only in OpenEBS

  • Replicated engine
  • Local PV engines
  • Kubernetes-native management
  • Snapshots and clones
  • No licence fee
  • Hardware independence

What people use each for

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

Hasura

  • Automatic GraphQL API generation from existing databasesnot OpenEBS
  • Real-time data subscriptions for modern applicationsnot OpenEBS
  • Backend infrastructure for web and mobile applicationsnot OpenEBS
  • Event-triggered webhooks for database changesnot OpenEBS

OpenEBS

  • Running Cassandra or Kafka on Kubernetes where the application already replicates and node-local volumes are sufficientnot Hasura
  • A platform team that needs persistent volumes on bare metal Kubernetes without a per node subscriptionnot Hasura
  • An edge or lab deployment where a commercial storage licence cannot be justifiednot Hasura
  • Replacing hostpath volumes with something that has snapshots and a Container Storage Interface drivernot Hasura

Where each one falls short

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

Hasura

  • Active model definition: model/command accessed more than 1,000 times monthly
  • Private DDN requires Base or Advanced plan

OpenEBS

  • There is no vendor on the other end of an incident unless you separately contract DataCore, so an outage at three in the morning is resolved by your own team and a public Slack channel.
  • The project has several storage engines with different maturity and different operational characteristics, and choosing the wrong one for your workload produces poor results that look like a product failure.
  • Documentation and upgrade guidance assume real Kubernetes storage knowledge, so teams without that expertise underestimate the operational load they are taking on.
  • Project governance shifted after DataCore acquired MayaData in 2021, which means the direction of a supposedly neutral project is influenced by one commercial sponsor.
  • Disaster recovery, cross-cluster replication and policy-driven data services are thinner than in the commercial alternatives, so organisations with those requirements end up building them or buying a product anyway.

Pricing, plan by plan

Hasura

Free
  • DDN FreeFree
    • Unlimited models
    • 1 supergraph developer
    • 15-minute observability retention
  • DDN Base$5/month
    • Per active model billing
    • Unlimited developers
    • 30-day observability retention
  • DDN Advanced$30/month
    • Per active model billing
    • Federated collaboration
    • Multi-repo CI/CD

OpenEBS

Free
  • OpenEBSFree
    • Apache 2.0 licensed
    • All storage engines included
    • No node or capacity limits

Which should you pick?

Choose Hasura if

  • You need graphql api.
  • You want to start without paying.
  • You also want real-time subscriptions.

Choose OpenEBS if

  • You need replicated engine.
  • You want to start without paying.
  • You work on Linux.
  • You also want local pv engines.

Questions people ask

Is Hasura or OpenEBS better?
Neither clearly leads. Hasura starts at Free and OpenEBS at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Hasura or OpenEBS?
Hasura starts at Free and OpenEBS at Free.
Does Hasura or OpenEBS run on more platforms?
Hasura runs on Web. OpenEBS runs on Linux.
Can I use Hasura for free?
Both have a free tier, so you can try either at no cost before committing.
What is Hasura best used for?
Hasura is most often used for automatic graphql api generation from existing databases, real-time data subscriptions for modern applications, backend infrastructure for web and mobile applications, event-triggered webhooks for database changes. Of those, automatic graphql api generation from existing databases and real-time data subscriptions for modern applications are not what OpenEBS is typically brought in for.
What can Hasura do that OpenEBS cannot?
Hasura covers GraphQL API, Real-time subscriptions, Access control, PostgreSQL. OpenEBS covers Replicated engine, Local PV engines, Kubernetes-native management, Snapshots and clones.

Answered from the vendors’ own pages

Hasura: How much does Hasura cost?

Hasura DDN Free is free. DDN Base starts at $5/active model/month, and DDN Advanced starts at $30/active model/month.

Source
OpenEBS: Who supports it in production?

The project is community supported. Commercial support is available from DataCore, which acquired the original sponsor MayaData in 2021. Establish that relationship before production, not during an incident.

Hasura: What is an active model in Hasura pricing?

An active model is defined as any model or command accessed more than 1,000 times monthly.

Source
OpenEBS: Which engine should we use?

If your application replicates its own data, use a Local engine and avoid replicating twice. If it does not, such as with PostgreSQL, use the Replicated engine.

Hasura: Is there a free version of Hasura?

Yes, Hasura DDN Free is always free and includes unlimited models, 1 supergraph developer, and 15-minute observability retention.

Source
OpenEBS: Does it cost anything?

No licence fee. The cost is operational, and a support contract if you want someone accountable.

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