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containerd vs Janus Gateway

containerd logo

containerd

Cloud

Industry-standard container runtime, and the engine inside Docker

From
Free
Rated
-
Full reviewWebsite
Janus Gateway logo

Janus Gateway

APIs

WebRTC gateway and media server for real-time communication

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: containerd not a developer-facing tool: there is no build command and the CLI is deliberately minimal, so it needs companions like nerdctl or Buildah; Janus Gateway no commercial pricing published; open-source project without official commercial offerings
  • They diverge on capability: containerd covers Full container lifecycle, Janus Gateway covers WebRTC Gateway.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which containerd and Janus Gateway actually diverge.

Attributes where containerd and Janus Gateway differ
AttributecontainerdJanus Gateway
Pricing modelOpen source, no licence feeopen-source
PlatformsLinux, WindowsLinux, MacOS, BSD
CategoryCloudAPIs
FoundedUnknown2010

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 containerd

  • Full container lifecycle
  • CRI support
  • OCI compliant
  • Snapshotter plugins
  • Namespaces
  • Stable API

Only in Janus Gateway

  • WebRTC Gateway
  • Media Routing
  • Video Conferencing
  • RTP
  • SRTP
  • REST API
  • Linux support
  • MacOS support

What people use each for

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

containerd

  • Running the container runtime under a Kubernetes cluster after the Docker shim removalnot Janus Gateway
  • Building a platform or PaaS that needs to execute containersnot Janus Gateway
  • Reducing the moving parts on nodes that only ever run Kubernetes workloadsnot Janus Gateway
  • Embedding container execution inside another productnot Janus Gateway

Janus Gateway

  • API Developmentnot containerd
  • API Gatewaynot containerd
  • API Testingnot containerd
  • API Documentationnot containerd
  • Microservicesnot containerd

Where each one falls short

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

containerd

  • Not a developer-facing tool: there is no build command and the CLI is deliberately minimal, so it needs companions like nerdctl or Buildah
  • Debugging is lower-level than Docker, and error messages assume knowledge of the runtime internals
  • Documentation is aimed at platform engineers, so newcomers usually find Docker or Podman material more useful
  • No image building at all — that is out of scope by design

Janus Gateway

  • No commercial pricing published; open-source project without official commercial offerings
  • Community-supported only; no vendor commercial support or SLA available

Pricing, plan by plan

containerd

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

Janus Gateway

Free
  • Open SourceFree
    • Core WebRTC gateway
    • Community support

Which should you pick?

Choose containerd if

  • You need full container lifecycle.
  • You want to start without paying.
  • You work on Linux, Windows.
  • You also want cri support.
containerd review

Choose Janus Gateway if

  • You need webrtc gateway.
  • You want to start without paying.
  • You work on Linux, MacOS, BSD.
  • You also want media routing.
Janus Gateway review

Questions people ask

Is containerd or Janus Gateway better?
Neither clearly leads. containerd starts at Free and Janus Gateway at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, containerd or Janus Gateway?
containerd starts at Free and Janus Gateway at Free.
Does containerd or Janus Gateway run on more platforms?
containerd runs on Linux, Windows. Janus Gateway runs on Linux, MacOS, BSD.
Can I use containerd for free?
Both have a free tier, so you can try either at no cost before committing.
What is containerd best used for?
containerd is most often used for running the container runtime under a kubernetes cluster after the docker shim removal, building a platform or paas that needs to execute containers, reducing the moving parts on nodes that only ever run kubernetes workloads, embedding container execution inside another product. Of those, running the container runtime under a kubernetes cluster after the docker shim removal and building a platform or paas that needs to execute containers are not what Janus Gateway is typically brought in for.
What can containerd do that Janus Gateway cannot?
containerd covers Full container lifecycle, CRI support, OCI compliant, Snapshotter plugins. Janus Gateway covers WebRTC Gateway, Media Routing, Video Conferencing, RTP.

Answered from the vendors’ own pages

containerd: Is containerd free?

Yes. It is an open-source CNCF graduated project with no licence fee.

Janus Gateway: How much does Janus Gateway cost?

Janus Gateway has no pricing model; it is a free open-source WebRTC server developed by Meetecho. The general-purpose server is available for download at no cost. There are no subscription tiers or commercial licensing fees.

Source
containerd: Do I need containerd if I use Docker?

You already have it. Docker uses containerd underneath to run containers; it is not an alternative you install separately.

Janus Gateway: Is Janus Gateway supported commercially?

Janus Gateway is community-supported open-source software with no official commercial support or SLA from the vendors. While Meetecho developed the project, users must rely on community documentation and forums for assistance.

Source
containerd: Why did Kubernetes drop Docker for containerd?

Kubernetes talks to runtimes through the Container Runtime Interface. Docker did not speak CRI natively and needed a shim, so Kubernetes removed the shim and talks to containerd directly, which Docker was already using anyway.

containerd: Can containerd build images?

No. Image building is deliberately out of scope. Tools such as Buildah, BuildKit or Docker handle that.

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