Softwr

Cloud · head to head

Cilium vs Lit

Cilium logo

Cilium

Cloud

eBPF-based networking, observability and security for Kubernetes

From
Free
Rated
-
Full reviewWebsite
Lit logo

Lit

Web Development

Lightweight library for building Web Components

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Cilium requires a recent Linux kernel, which rules out older distributions and some managed environments; Lit smaller ecosystem compared to React or Vue
  • They diverge on capability: Cilium covers eBPF datapath, Lit covers Reactive properties.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Cilium and Lit actually diverge.

Attributes where Cilium and Lit differ
AttributeCiliumLit
Pricing modelOpen source, no licence feeUnknown
PlatformsKubernetes, LinuxWeb, Node.js
CategoryCloudWeb Development

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 Cilium

  • eBPF datapath
  • Identity-based policy
  • Hubble observability
  • Sidecar-free mesh

Only in Lit

  • Reactive properties
  • Tagged template literals
  • Scoped styling with Shadow DOM
  • Web Components standard
  • Minimal bundle size

What people use each for

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

Cilium

  • Kubernetes networking at a scale where iptables-based CNI performance degradesnot Lit
  • Network policy expressed on workload identity rather than fragile IP rulesnot Lit
  • Seeing which services actually talk to each other, and what policy is droppingnot Lit

Lit

  • Building reusable component libraries across frameworksnot Cilium
  • Creating design systems with scoped stylesnot Cilium
  • Developing progressive web applications with minimal dependenciesnot Cilium

Where each one falls short

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

Cilium

  • Requires a recent Linux kernel, which rules out older distributions and some managed environments
  • eBPF is genuinely hard to debug when it misbehaves, and the skill is rare on most teams
  • Broad scope — CNI, policy, mesh, observability — means the learning curve covers several domains at once

Lit

  • Smaller ecosystem compared to React or Vue
  • Web Components adoption still growing in the industry
  • Requires understanding of Shadow DOM concepts

Pricing, plan by plan

Cilium

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

Lit

Free

No published plan breakdown. See the Lit review.

Which should you pick?

Choose Cilium if

  • You need ebpf datapath.
  • You want to start without paying.
  • You work on Kubernetes, Linux.
  • You also want identity-based policy.
Cilium review

Choose Lit if

  • You need reactive properties.
  • You want to start without paying.
  • You work on Web, Node.js.
  • You also want tagged template literals.
Lit review

Questions people ask

Is Cilium or Lit better?
Neither clearly leads. Cilium starts at Free and Lit at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cilium or Lit?
Cilium starts at Free and Lit at Free.
Does Cilium or Lit run on more platforms?
Cilium runs on Kubernetes, Linux. Lit runs on Web, Node.js.
Can I use Cilium for free?
Both have a free tier, so you can try either at no cost before committing.
What is Cilium best used for?
Cilium is most often used for kubernetes networking at a scale where iptables-based cni performance degrades, network policy expressed on workload identity rather than fragile ip rules, seeing which services actually talk to each other, and what policy is dropping. Of those, kubernetes networking at a scale where iptables-based cni performance degrades and network policy expressed on workload identity rather than fragile ip rules are not what Lit is typically brought in for.
What can Cilium do that Lit cannot?
Cilium covers eBPF datapath, Identity-based policy, Hubble observability, Sidecar-free mesh. Lit covers Reactive properties, Tagged template literals, Scoped styling with Shadow DOM, Web Components standard.

Answered from the vendors’ own pages

Cilium: Is Cilium free?

Yes, open source and CNCF-graduated. Isovalent sells an enterprise distribution and support.

Lit: Is Lit free to use?

Yes, Lit is open source and completely free under the BSD 3-Clause license.

Source
Cilium: What does eBPF change?

It lets Cilium run packet-processing programs inside the kernel instead of relying on iptables rule chains, which behave poorly as the number of services grows.

Cilium: Does Cilium replace a service mesh?

It can cover much of what a mesh does without sidecars, though full mesh feature sets still favour Istio or Linkerd.

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