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Cloud · head to head

Linkerd vs Zipkin

Linkerd logo

Linkerd

Cloud

Lightweight service mesh for Kubernetes

From
Free
Rated
-
Full reviewWebsite
Zipkin logo

Zipkin

Cloud

Distributed tracing system for microservice latency

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Linkerd deliberately fewer features than Istio, so complex routing and multi-cluster policy can hit its limits; Zipkin less active development and smaller community momentum than Jaeger
  • They diverge on capability: Linkerd covers Automatic mutual TLS, Zipkin covers Trace collection and search.

Where they differ

Only the attributes on which Linkerd and Zipkin actually diverge.

Attributes where Linkerd and Zipkin differ
AttributeLinkerdZipkin
PlatformsKubernetes, LinuxLinux, Docker, Kubernetes, Self-hosted

Identical on both: starting price (Free), pricing model (Open source, no licence fee), free tier (Yes), user rating (Not yet rated), category (Cloud).

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 Linkerd

  • Automatic mutual TLS
  • Golden metrics
  • Rust micro-proxy
  • Traffic policy

Only in Zipkin

  • Trace collection and search
  • Dependency diagram
  • Simple deployment
  • Pluggable storage

What people use each for

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

Linkerd

  • Adding mutual TLS between services to satisfy a compliance requirementnot Zipkin
  • Getting per-service latency and success rates without instrumenting applicationsnot Zipkin
  • Progressive delivery with traffic splitting during rolloutsnot Zipkin

Zipkin

  • Adding distributed tracing quickly without standing up heavy infrastructurenot Linkerd
  • Java and Spring Boot estates, where instrumentation support is long-establishednot Linkerd
  • Small deployments where Jaeger is more than the problem requiresnot Linkerd

Where each one falls short

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

Linkerd

  • Deliberately fewer features than Istio, so complex routing and multi-cluster policy can hit its limits
  • Kubernetes only, with no story for workloads outside a cluster
  • A sidecar per pod is still real memory and latency overhead, however small, and a mesh is another layer to debug during incidents

Zipkin

  • Less active development and smaller community momentum than Jaeger
  • Fewer features: sampling, storage options and UI are all more limited
  • The interface is dated and slower to work with on large trace volumes
  • Tracing alone still leaves metrics and logs in separate tools during an incident

Pricing, plan by plan

Linkerd

Free
  • LinkerdFree
    • Full functionality
    • No usage limits
    • Community support

Zipkin

Free
  • ZipkinFree
    • Full functionality
    • No usage limits
    • Community support

Which should you pick?

Choose Linkerd if

  • You need automatic mutual tls.
  • You want to start without paying.
  • You work on Kubernetes, Linux.
  • You also want golden metrics.
Linkerd review

Choose Zipkin if

  • You need trace collection and search.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Self-hosted.
  • You also want dependency diagram.
Zipkin review

Questions people ask

Is Linkerd or Zipkin better?
Neither clearly leads. Linkerd starts at Free and Zipkin at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Linkerd or Zipkin?
Linkerd starts at Free and Zipkin at Free.
Does Linkerd or Zipkin run on more platforms?
Linkerd runs on Kubernetes, Linux. Zipkin runs on Linux, Docker, Kubernetes, Self-hosted.
Can I use Linkerd for free?
Both have a free tier, so you can try either at no cost before committing.
What is Linkerd best used for?
Linkerd is most often used for adding mutual tls between services to satisfy a compliance requirement, getting per-service latency and success rates without instrumenting applications, progressive delivery with traffic splitting during rollouts. Of those, adding mutual tls between services to satisfy a compliance requirement and getting per-service latency and success rates without instrumenting applications are not what Zipkin is typically brought in for.
What can Linkerd do that Zipkin cannot?
Linkerd covers Automatic mutual TLS, Golden metrics, Rust micro-proxy, Traffic policy. Zipkin covers Trace collection and search, Dependency diagram, Simple deployment, Pluggable storage.

Answered from the vendors’ own pages

Linkerd: Is Linkerd free?

The open-source project is free. Buoyant, its maintainer, sells enterprise distributions and support separately.

Zipkin: Is Zipkin free?

Yes, open source with no licence fee.

Linkerd: Linkerd or Istio?

Linkerd trades features for simplicity, with a smaller proxy and far less configuration. Istio is more capable and correspondingly more work to run.

Zipkin: Zipkin or Jaeger?

Jaeger has more momentum, more features and CNCF backing. Zipkin is lighter and quicker to stand up, and remains well supported in the Java and Spring ecosystem.

Linkerd: Do I need a service mesh at all?

Only if you need mutual TLS, uniform retries or per-service traffic metrics across many services. For a handful of services it is usually more machinery than the problem justifies.

Zipkin: Does Zipkin work with OpenTelemetry?

Yes. OpenTelemetry can export to Zipkin, which is now the usual way to instrument for it.

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