Softwr

Cloud · head to head

Zeabur vs K3s

Zeabur logo

Zeabur

Cloud

AI-powered cloud deployment platform for developers

From
Free
Rated
-
Full reviewWebsite
K3s logo

K3s

Cloud

Lightweight certified Kubernetes distribution in a single binary

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Zeabur free plan limited to single server with 48-hour log retention; K3s the SQLite default is single-server only; highly available control planes need etcd or an external datastore, which removes much of the simplicity
  • They diverge on capability: Zeabur covers AI Agent, K3s covers Single binary.

Where they differ

Only the attributes on which Zeabur and K3s actually diverge.

Attributes where Zeabur and K3s differ
AttributeZeaburK3s
Pricing modelFixed monthly plansOpen source, no licence fee
PlatformsWeb, CLILinux, ARM, Self-hosted
Founded2025Unknown

Identical on both: starting price (Free), 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 Zeabur

  • AI Agent
  • Managed Servers
  • Domain and DNS Management
  • Email Service
  • AI Hub
  • Deploy Templates
  • Git Integration

Only in K3s

  • Single binary
  • SQLite by default
  • Certified conformant
  • Batteries included
  • Low resource footprint
  • Simple install

What people use each for

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

Zeabur

  • Deploying full-stack web applications without DevOps expertisenot K3s
  • Building AI agent infrastructure with integrated API accessnot K3s
  • Managing multi-region deployments with automated scalingnot K3s
  • Running containerized services with built-in domain and emailnot K3s

K3s

  • Kubernetes on edge sites and IoT hardware where full clusters will not fitnot Zeabur
  • Development and CI clusters that must start fast and cost nothingnot Zeabur
  • Small production clusters where full Kubernetes is more operations than the workload justifiesnot Zeabur
  • Teaching and learning Kubernetes without cloud spendnot Zeabur

Where each one falls short

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

Zeabur

  • Free plan limited to single server with 48-hour log retention
  • Small team size may limit support and feature velocity
  • Building spec upgrades limited on lower tiers
  • Enterprise support not clearly documented

K3s

  • The SQLite default is single-server only; highly available control planes need etcd or an external datastore, which removes much of the simplicity
  • Bundled components such as Traefik are opinionated defaults that larger teams often strip out and replace
  • Removed in-tree cloud provider integrations mean cloud-specific features need external controllers
  • Aimed at small and edge clusters, so very large deployments are better served by a standard distribution

Pricing, plan by plan

Zeabur

Free
  • FreeFree
    • 1 manageable server
    • 2C4G build specs
    • 48-hour log retention
  • Dev$5/month
    • 3 manageable servers
    • 7-day log retention
    • 250 MB file uploads
  • Pro$19/month
    • 10 manageable servers
    • 4C8G build specs
    • 30-day log retention
  • Team$79/month
    • 3 included seats
    • Unlimited manageable servers
    • 90-day log retention

K3s

Free
  • K3sFree
    • Full functionality
    • No usage limits
    • Community support

Which should you pick?

Choose Zeabur if

  • You need ai agent.
  • You want to start without paying.
  • You work on Web, CLI.
  • You also want managed servers.
Zeabur review

Choose K3s if

  • You need single binary.
  • You want to start without paying.
  • You work on Linux, ARM, Self-hosted.
  • You also want sqlite by default.
K3s review

Questions people ask

Is Zeabur or K3s better?
Neither clearly leads. Zeabur starts at Free and K3s at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Zeabur or K3s?
Zeabur starts at Free and K3s at Free.
Does Zeabur or K3s run on more platforms?
Zeabur runs on Web, CLI. K3s runs on Linux, ARM, Self-hosted.
Can I use Zeabur for free?
Both have a free tier, so you can try either at no cost before committing.
What is Zeabur best used for?
Zeabur is most often used for deploying full-stack web applications without devops expertise, building ai agent infrastructure with integrated api access, managing multi-region deployments with automated scaling, running containerized services with built-in domain and email. Of those, deploying full-stack web applications without devops expertise and building ai agent infrastructure with integrated api access are not what K3s is typically brought in for.
What can Zeabur do that K3s cannot?
Zeabur covers AI Agent, Managed Servers, Domain and DNS Management, Email Service. K3s covers Single binary, SQLite by default, Certified conformant, Batteries included.

Answered from the vendors’ own pages

Zeabur: What is included in the free plan?

The free plan includes 1 manageable server, 2C4G build specifications, 48-hour log retention, 50 MB file upload limit, and community support.

Source
K3s: Is K3s free?

Yes. K3s is open source with no licence fee. SUSE sells commercial support around Rancher separately.

Zeabur: How do additional seats work on the Team plan?

The Team plan includes 3 seats with additional seats available at $24 per seat per month.

Source
K3s: Is K3s real Kubernetes?

Yes. It is CNCF-certified conformant, so standard manifests, kubectl and Helm charts work without modification.

Zeabur: Is there a free trial period?

The Dev and Pro plans include 14 days free before billing begins.

Source
K3s: Why is K3s smaller than Kubernetes?

It strips legacy, alpha and in-tree cloud provider code, packages everything as one binary, and defaults to SQLite instead of etcd.

K3s: Can K3s run in production?

Yes, and it does, particularly at the edge and for small clusters. For a highly available control plane you need to move off the SQLite default to etcd or an external datastore.

Share

Related pages

More on Zeabur

More on K3s

Keep looking

Other head to heads