Is Nebula or Traceloop better?

Neither clearly leads. Nebula starts at Free and Traceloop at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Nebula or Traceloop?

Nebula starts at Free and Traceloop at Free.

Does Nebula or Traceloop run on more platforms?

Nebula runs on Linux, macOS, Windows, iOS, Android, FreeBSD. Traceloop runs on Cloud, On-premises, Air-gapped, Python, TypeScript, Go, Ruby.

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 Traceloop is typically brought in for.

What can Nebula do that Traceloop cannot?

Nebula covers Certificate carried identity, Group based host firewall, Lighthouse discovery, Noise protocol encryption. Traceloop covers Open-source SDK (OpenLLMetry), Multi-provider support, Observability platform integration, Framework support.

Networking · head to head

Nebula vs Traceloop

Nebula

Networking

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

From: Free
Rated: -

Full review Website

Traceloop

Logging

LLM reliability platform with open-source observability and evaluation

From: Free
Rated: -

Full review Website

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.; Traceloop free tier limited to 50k spans per month and 24-hour retention, restricting production use
They diverge on capability: Nebula covers Certificate carried identity, Traceloop covers Open-source SDK (OpenLLMetry).
Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Nebula and Traceloop actually diverge.

Attributes where Nebula and Traceloop differ
Attribute	Nebula	Traceloop
Pricing model	Open source, no licence fee	Freemium with pay-as-you-go enterprise option
Platforms	Linux, macOS, Windows, iOS, Android, FreeBSD	Cloud, On-premises, Air-gapped, Python, TypeScript, Go, Ruby
Category	Networking	Logging

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 Traceloop

Open-source SDK (OpenLLMetry)
Multi-provider support
Observability platform integration
Framework support
Monitoring dashboard
Evaluation system
Deployment flexibility

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 Traceloop
Very large fleets where a central policy service on the connection path is unacceptablenot Traceloop
Environments that already run an internal certificate authority and want the network to use itnot Traceloop
Replacing per host iptables rules with policy written against roles that follow the hostnot Traceloop

Traceloop

Monitoring LLM application performance in productionnot Nebula
Instrumenting LLM apps with minimal code overheadnot Nebula
Continuous evaluation and quality scoring of LLM outputsnot Nebula
Debugging LLM application issues with full trace visibilitynot Nebula
Integrating observability data into existing monitoring stacksnot 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.

Traceloop

Free tier limited to 50k spans per month and 24-hour retention, restricting production use
Company acquisition by ServiceNow creates uncertainty about future roadmap
Requires integration with separate observability platforms for visualization
Less feature-rich than dedicated LLM evaluation platforms

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

Traceloop

Free

FreeFree
- 50,000 spans per month
- Up to 5 seats
- 24-hour data retention
Enterprise$undefined/custom
- Unlimited spans per month
- Unlimited seats
- Custom data retention

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 Traceloop if

You need open-source sdk (openllmetry).
You want to start without paying.
You work on Cloud, On-premises, Air-gapped, Python, TypeScript, Go, Ruby.
You also want multi-provider support.

Traceloop review

Questions people ask

Is Nebula or Traceloop better?: Neither clearly leads. Nebula starts at Free and Traceloop at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Nebula or Traceloop?: Nebula starts at Free and Traceloop at Free.
Does Nebula or Traceloop run on more platforms?: Nebula runs on Linux, macOS, Windows, iOS, Android, FreeBSD. Traceloop runs on Cloud, On-premises, Air-gapped, Python, TypeScript, Go, Ruby.
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 Traceloop is typically brought in for.
What can Nebula do that Traceloop cannot?: Nebula covers Certificate carried identity, Group based host firewall, Lighthouse discovery, Noise protocol encryption. Traceloop covers Open-source SDK (OpenLLMetry), Multi-provider support, Observability platform integration, Framework 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.

Traceloop: Is OpenLLMetry open-source?

Yes, OpenLLMetry is Traceloop's open-source SDK built on OpenTelemetry standards. It allows teams to instrument LLM applications with just 2 lines of code and send data to 25+ observability platforms.

Source

Nebula: Can I run it without Defined Networking?

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

Traceloop: What is the impact of ServiceNow acquisition?

Traceloop is joining ServiceNow, representing a strategic acquisition that will broaden enterprise adoption and integration capabilities. Current operations continue with free and enterprise options available.

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.

Traceloop: How many LLM providers and frameworks does Traceloop support?

Traceloop supports 20+ LLM providers including OpenAI and Anthropic, and integrates with frameworks like LangChain and LlamaIndex. It can send data to 25+ observability platforms.

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.

Nebula vs Traceloop

Nebula

Traceloop

The short version

Where they differ

What each one covers

Only in Nebula

Only in Traceloop

What people use each for

Nebula

Traceloop

Where each one falls short

Nebula

Traceloop

Pricing, plan by plan

Nebula

Traceloop

Which should you pick?

Choose Nebula if

Choose Traceloop if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Nebula

More on Traceloop

Keep looking

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