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Databases · head to head

Dgraph vs SonarQube

Dgraph logo

Dgraph

Databases

Apache 2.0 distributed graph database written in Go, maintained by Hypermode, queried through GraphQL or its own DQL language.

From
Free
Free plan
Yes
Visit DgraphFull review
SonarQube logo

SonarQube

Developer Tools

Code quality and code security for clean code, at every step

From
Free
Free plan
Yes
Visit SonarQubeFull review

The short version

  • Free plans on both; paid from $39/mo and $34/mo.
  • Where SonarQube falls short: advanced Security add-on uses custom pricing.
  • Prices and features on this page were last checked on 13 November 2026.

Where they differ

Only the attributes on which Dgraph and SonarQube actually diverge.

Attributes where Dgraph and SonarQube differ
AttributeDgraphSonarQube
Pricing modelFreemiumSubscription
PlatformsLinux, macOS, Self-hosted, WebWeb
CategoryDatabasesDeveloper Tools

Identical on both: starting price (Free), free tier (Yes).

Not yet recorded: founded for SonarQube.

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 Dgraph

  • Apache 2.0 licence
  • Generated GraphQL API
  • DQL query language
  • Predicate sharding
  • Raft replication
  • Distributed ACID transactions
  • Written in Go
  • Full-text and geo indexing

Only in SonarQube

Nothing recorded that Dgraph does not also cover.

What people use each for

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

Dgraph

  • An application whose core data is a graph, such as permissions, social connections or product relationships, where the frontend already consumes GraphQLnot SonarQube
  • A knowledge graph that outgrew a single machine and needs storage distributed across nodes without a per-core licence negotiationnot SonarQube
  • Recommendation or fraud-detection features that traverse several hops at request time, where a relational join chain has become the bottlenecknot SonarQube
  • Teams that want a graph database they can read, fork and self-host under a permissive licence rather than a source-available onenot SonarQube

SonarQube

  • Code quality analysisnot Dgraph
  • Vulnerability detectionnot Dgraph
  • Security scanningnot Dgraph
  • Compliance reportingnot Dgraph

Where each one falls short

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

Dgraph

  • Sharding is by predicate, so a single very hot predicate lives entirely in one Raft group and cannot be split further; adding nodes does not relieve it and the fix is a data model change
  • Stewardship passed from Dgraph Labs to Hypermode after the original company stopped operating independently, so anyone building on it is betting on a second custodian rather than on the original team's roadmap
  • The GraphQL layer is generated and opinionated, so anything it does not express drops you into DQL, which is a second language your team must learn and which no other database speaks
  • The community is a fraction of Neo4j's, so operational answers, tuning experience, hiring and third-party tooling are all thinner, and unusual failure modes in a Zero and Alpha cluster leave you reading source rather than a forum
  • There is no portable graph standard to migrate to; Cypher, Gremlin and SPARQL are all different query models, so the schema and every query is a rewrite if you later leave, and that cost grows with the application

SonarQube

  • Advanced Security add-on uses custom pricing
  • Only private project lines of code count toward limits

Pricing, plan by plan

Dgraph

Free
  • CommunityFree
    • Native GraphQL
    • Graph queries
    • Full-text search
  • Cloud$39/mo
    • Managed service
    • Auto-scaling
    • Enterprise support

SonarQube

Free
  • FreeFree
    • Supports up to 50000 lines of code in private projects
    • Never expires
    • Covers public projects
  • Team$34/mo
    • 30+ languages
    • Code quality standards
    • Bug and vulnerability detection
  • EnterpriseOn request
    • Advanced security reports
    • OWASP/CWE/PCI DSS compliance
    • Unlimited users and projects

Which should you pick?

Choose Dgraph if

  • You need apache 2.0 licence.
  • You want to start without paying.
  • You work on Linux, macOS, Self-hosted, Web.
  • You also want generated graphql api.
Dgraph review

Choose SonarQube if

  • You want to start without paying.
SonarQube review

Questions people ask

Is Dgraph or SonarQube better?
Neither clearly leads. Dgraph starts at Free and SonarQube at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Dgraph or SonarQube?
Dgraph starts at Free and SonarQube at Free.
Does Dgraph or SonarQube run on more platforms?
Dgraph runs on Linux, macOS, Self-hosted, Web. SonarQube runs on Web.
Can I use Dgraph for free?
Both have a free tier, so you can try either at no cost before committing.
What is Dgraph best used for?
Dgraph is most often used for an application whose core data is a graph, such as permissions, social connections or product relationships, where the frontend already consumes graphql, a knowledge graph that outgrew a single machine and needs storage distributed across nodes without a per-core licence negotiation, recommendation or fraud-detection features that traverse several hops at request time, where a relational join chain has become the bottleneck, teams that want a graph database they can read, fork and self-host under a permissive licence rather than a source-available one. Of those, an application whose core data is a graph, such as permissions, social connections or product relationships, where the frontend already consumes graphql and a knowledge graph that outgrew a single machine and needs storage distributed across nodes without a per-core licence negotiation are not what SonarQube is typically brought in for.
What can Dgraph do that SonarQube cannot?
Dgraph covers Apache 2.0 licence, Generated GraphQL API, DQL query language, Predicate sharding.

Answered from the vendors’ own pages

Dgraph: Is Dgraph open source?

Yes. The current repository is Apache 2.0, which is a permissive OSI licence, and the project is at v25 under Hypermode's maintenance.

SonarQube: How much does SonarQube cost?

SonarQube offers a free tier supporting up to 50000 lines of code in private projects, a Team plan starting at $34/month, and custom Enterprise pricing. Team plan includes 14-day free trial.

Source
Dgraph: Is it really GraphQL?

It serves a generated GraphQL API, which is real GraphQL for clients. Its native language, DQL, resembles GraphQL syntactically but is Dgraph's own language and is not the GraphQL specification.

SonarQube: Is SonarQube free?

Yes, SonarQube offers a free tier that never expires and covers both public and private projects up to 50000 lines of code in private projects.

Source
Dgraph: How does it compare to Neo4j?

Neo4j has the larger ecosystem, Cypher, and far more operational precedent. Dgraph distributes storage across nodes by default and gives you a GraphQL endpoint without writing resolvers. The choice usually turns on whether you need horizontal scale and a GraphQL surface more than you need ecosystem depth.

SonarQube: What languages does SonarQube support?

SonarQube Team plan supports 30+ languages including common programming languages. Enterprise plan adds support for 40+ languages including ABAP, COBOL, and Apex.

Source
Dgraph: What does a production cluster look like?

At minimum a set of Zero nodes for coordination and a replicated set of Alpha nodes for data, typically three of each for fault tolerance, which is a meaningfully larger operational footprint than a single graph server.

Dgraph: Who maintains it now?

Hypermode. Dgraph Labs, the original company, no longer operates it, and that change of custodian is the main non-technical risk to weigh.

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