Softwr

Cloud · head to head

Cilium vs Wireshark

Cilium logo

Cilium

Cloud

eBPF-based networking, observability and security for Kubernetes

From
Free
Rated
-
Full reviewWebsite
Wireshark logo

Wireshark

Cybersecurity

The world's foremost network protocol analyzer

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; Wireshark free and open source under the GNU GPL; downloadable without paying any license fee, no commercial tier
  • They diverge on capability: Cilium covers eBPF datapath, Wireshark covers Deep packet inspection.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Cilium and Wireshark actually diverge.

Attributes where Cilium and Wireshark differ
AttributeCiliumWireshark
Pricing modelOpen source, no licence feefree
PlatformsKubernetes, LinuxDesktop, Cli
CategoryCloudCybersecurity
FoundedUnknown1998

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 Wireshark

  • Deep packet inspection
  • Live capture
  • Offline analysis
  • 3000+ protocol support
  • Rich display filters
  • VoIP analysis
  • Decryption support
  • Scripting with Lua

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 Wireshark
  • Network policy expressed on workload identity rather than fragile IP rulesnot Wireshark
  • Seeing which services actually talk to each other, and what policy is droppingnot Wireshark

Wireshark

  • Network Securitynot Cilium
  • Packet Analysisnot Cilium
  • Open Sourcenot 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

Wireshark

  • Free and open source under the GNU GPL; downloadable without paying any license fee, no commercial tier

Pricing, plan by plan

Cilium

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

Wireshark

Free
  • Free & Open SourceFree
    • Full functionality
    • Deep inspection
    • Live capture

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 Wireshark if

  • You need deep packet inspection.
  • You want to start without paying.
  • You work on Desktop, Cli.
  • You also want live capture.
Wireshark review

Questions people ask

Is Cilium or Wireshark better?
Neither clearly leads. Cilium starts at Free and Wireshark at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cilium or Wireshark?
Cilium starts at Free and Wireshark at Free.
Does Cilium or Wireshark run on more platforms?
Cilium runs on Kubernetes, Linux. Wireshark runs on Desktop, Cli.
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 Wireshark is typically brought in for.
What can Cilium do that Wireshark cannot?
Cilium covers eBPF datapath, Identity-based policy, Hubble observability, Sidecar-free mesh. Wireshark covers Deep packet inspection, Live capture, Offline analysis, 3000+ protocol support.

Answered from the vendors’ own pages

Cilium: Is Cilium free?

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

Wireshark: Is there a cost to download and use Wireshark?

No, Wireshark is completely free. It's distributed under the GNU General Public License version 2, making it "free software" with no demo limitations. The full version is available at no cost.

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.

Wireshark: What support options are available for Wireshark users?

Wireshark offers multiple support channels including mailing lists, an active Discord community, the Ask Wireshark Q&A platform, comprehensive documentation, a user guide, and developer resources for those needing technical assistance.

Source
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.

Wireshark: Are there different pricing tiers or subscription levels?

Wireshark does not offer pricing tiers or subscriptions. There is one free version available to all users regardless of use case, personal, professional, or organizational.

Source
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