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Networking · head to head

Nebula vs Wireshark

Nebula logo

Nebula

Networking

Certificate based overlay network from Slack, with identity and firewall rules carried in the certificate

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: Nebula the open source project has no user interface, no enrolment workflow and no revocation service, so certificate issuing, distribution and expiry become scripts you write and then have to keep working.; Wireshark free and open source under the GNU GPL; downloadable without paying any license fee, no commercial tier
  • They diverge on capability: Nebula covers Certificate carried identity, Wireshark covers Deep packet inspection.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Nebula and Wireshark actually diverge.

Attributes where Nebula and Wireshark differ
AttributeNebulaWireshark
Pricing modelOpen source, no licence feefree
PlatformsLinux, macOS, Windows, iOS, Android, FreeBSDDesktop, Cli
CategoryNetworkingCybersecurity
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 Nebula

  • Certificate carried identity
  • Group based host firewall
  • Lighthouse discovery
  • Noise protocol encryption
  • Unsafe routes
  • Managed option

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.

Nebula

  • Flattening a network across several clouds and datacentres without VPC peering or route tablesnot Wireshark
  • Very large fleets where a central policy service on the connection path is unacceptablenot Wireshark
  • Environments that already run an internal certificate authority and want the network to use itnot Wireshark
  • Replacing per host iptables rules with policy written against roles that follow the hostnot Wireshark

Wireshark

  • Network Securitynot Nebula
  • Packet Analysisnot Nebula
  • Open Sourcenot Nebula

Where each one falls short

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

Nebula

  • The open source project has no user interface, no enrolment workflow and no revocation service, so certificate issuing, distribution and expiry become scripts you write and then have to keep working.
  • Revoking a compromised host means distributing a blocklist entry to every other host and reloading them, which is a fleet wide operation rather than a click, and easy to get wrong under pressure.
  • Changing a host group membership means reissuing and redeploying its certificate, so policy changes are a deployment rather than a configuration edit.
  • There is no identity provider integration or single sign on in the open source version, so it maps well to servers and badly to a fleet of user laptops.
  • NAT traversal is best effort and hosts behind symmetric NAT need a relay configured deliberately, so connectivity failures show up as intermittent rather than immediate and are awkward to diagnose.

Wireshark

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

Pricing, plan by plan

Nebula

Free
  • NebulaFree
    • Full functionality under the MIT licence
    • No host limit
    • You operate the certificate authority and lighthouses
  • Defined Networking$undefined/month
    • Hosted control plane and enrolment
    • Managed certificate lifecycle and revocation
    • Policy and DNS interface

Wireshark

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

Which should you pick?

Choose Nebula if

  • You need certificate carried identity.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, iOS, Android, FreeBSD.
  • You also want group based host firewall.
Nebula 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 Nebula or Wireshark better?
Neither clearly leads. Nebula 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, Nebula or Wireshark?
Nebula starts at Free and Wireshark at Free.
Does Nebula or Wireshark run on more platforms?
Nebula runs on Linux, macOS, Windows, iOS, Android, FreeBSD. Wireshark runs on Desktop, Cli.
Can I use Nebula for free?
Both have a free tier, so you can try either at no cost before committing.
What is Nebula best used for?
Nebula is most often used for flattening a network across several clouds and datacentres without vpc peering or route tables, very large fleets where a central policy service on the connection path is unacceptable, environments that already run an internal certificate authority and want the network to use it, replacing per host iptables rules with policy written against roles that follow the host. Of those, flattening a network across several clouds and datacentres without vpc peering or route tables and very large fleets where a central policy service on the connection path is unacceptable are not what Wireshark is typically brought in for.
What can Nebula do that Wireshark cannot?
Nebula covers Certificate carried identity, Group based host firewall, Lighthouse discovery, Noise protocol encryption. Wireshark covers Deep packet inspection, Live capture, Offline analysis, 3000+ protocol support.

Answered from the vendors’ own pages

Nebula: Does it use WireGuard?

No. Nebula predates the common WireGuard mesh tools and uses the Noise protocol framework with its own certificate format.

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
Nebula: Can I run it without Defined Networking?

Yes, entirely. Defined Networking sells the control plane conveniences, not the network itself.

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
Nebula: How do I revoke a host?

Add its certificate fingerprint to the blocklist in the configuration of the other hosts and reload them. There is no online revocation check.

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
Nebula: Is it a good fit for laptops?

Less so than the identity provider based tools. There is no single sign on, so every laptop needs a certificate issued and renewed by whatever process you build.

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