Softwr

Cloud · head to head

Caddy vs LibreNMS

Caddy logo

Caddy

Cloud

Web server with automatic HTTPS by default

From
Free
Rated
-
Full reviewWebsite
LibreNMS logo

LibreNMS

Networking

Free, community-driven network monitoring with commercial support sold by a third-party partner, not the project itself

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Caddy smaller ecosystem than Nginx, so third-party guides and modules are fewer; LibreNMS there is no official LibreNMS company; commercial support runs through a single designated third-party partner, Config Services Ltd, rather than a broad vendor support market
  • They diverge on capability: Caddy covers Automatic HTTPS, LibreNMS covers SNMP auto-discovery.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Caddy and LibreNMS actually diverge.

Attributes where Caddy and LibreNMS differ
AttributeCaddyLibreNMS
Pricing modelOpen source, no licence feeOpen source, no licence fee; commercial support sold by a third-party partner
PlatformsLinux, macOS, Windows, DockerLinux, Web
CategoryCloudNetworking

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 Caddy

  • Automatic HTTPS
  • Caddyfile
  • Reverse proxy
  • Single binary

Only in LibreNMS

  • SNMP auto-discovery
  • Device and OS support
  • Alerting
  • API
  • Distributed polling

What people use each for

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

Caddy

  • Sites and services where expired certificates have caused outages beforenot LibreNMS
  • Small deployments where Nginx configuration is more effort than the problem warrantsnot LibreNMS
  • Reverse proxying internal services with TLS without a certificate workflownot LibreNMS

LibreNMS

  • A network team wanting SNMP-based device monitoring with zero licence cost and full control over the deploymentnot Caddy
  • An organisation with in-house Linux and networking expertise that does not need a vendor support contractnot Caddy
  • A team wanting an alternative to Icinga that is focused specifically on network device polling rather than general infrastructure monitoringnot Caddy
  • A company wanting SLA-backed support for LibreNMS but without wanting to build that capability in-house, contracting the designated partner insteadnot Caddy

Where each one falls short

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

Caddy

  • Smaller ecosystem than Nginx, so third-party guides and modules are fewer
  • Adding plugins means rebuilding the binary rather than loading a module
  • Under very high throughput Nginx generally still benchmarks ahead
  • Automatic certificate issuance needs outbound internet access, which complicates air-gapped deployments

LibreNMS

  • There is no official LibreNMS company; commercial support runs through a single designated third-party partner, Config Services Ltd, rather than a broad vendor support market
  • Self-hosting and maintaining LibreNMS requires real Linux and SNMP expertise, and there is no vendor obligated to fix issues without a separate paid support arrangement
  • Device and OS support quality varies because it is community-contributed, so obscure or newer hardware may have thinner or less accurate polling templates than mainstream vendors
  • The web interface, while functional, is less polished out of the box than commercial tools like PRTG, and dashboard customisation takes more manual configuration
  • Scaling to a very large device count requires manually configuring distributed polling, which is more operational work than a SaaS tool that scales transparently
  • Project direction depends on community and contributor priorities rather than a company roadmap, so feature development pace and priorities can be less predictable than a commercial vendor's

Pricing, plan by plan

Caddy

Free
  • CaddyFree
    • Full functionality
    • Commercial use permitted
    • Community support

LibreNMS

Free
  • LibreNMSFree
    • Full functionality
    • No usage limits
    • Community forum and GitHub support

Which should you pick?

Choose Caddy if

  • You need automatic https.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, Docker.
  • You also want caddyfile.
Caddy review

Choose LibreNMS if

  • You need snmp auto-discovery.
  • You want to start without paying.
  • You work on Linux, Web.
  • You also want device and os support.
LibreNMS review

Questions people ask

Is Caddy or LibreNMS better?
Neither clearly leads. Caddy starts at Free and LibreNMS at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Caddy or LibreNMS?
Caddy starts at Free and LibreNMS at Free.
Does Caddy or LibreNMS run on more platforms?
Caddy runs on Linux, macOS, Windows, Docker. LibreNMS runs on Linux, Web.
Can I use Caddy for free?
Both have a free tier, so you can try either at no cost before committing.
What is Caddy best used for?
Caddy is most often used for sites and services where expired certificates have caused outages before, small deployments where nginx configuration is more effort than the problem warrants, reverse proxying internal services with tls without a certificate workflow. Of those, sites and services where expired certificates have caused outages before and small deployments where nginx configuration is more effort than the problem warrants are not what LibreNMS is typically brought in for.
What can Caddy do that LibreNMS cannot?
Caddy covers Automatic HTTPS, Caddyfile, Reverse proxy, Single binary. LibreNMS covers SNMP auto-discovery, Device and OS support, Alerting, API.

Answered from the vendors’ own pages

Caddy: Is Caddy free?

Yes, open source under the Apache 2.0 licence, free for commercial use.

LibreNMS: Is LibreNMS really free with no paid tier of the software?

Yes, the software itself has no licence fee; only optional third-party support is paid.

Caddy: What does automatic HTTPS mean?

Caddy obtains certificates from Let’s Encrypt or ZeroSSL on first request and renews them before expiry, with no cron job or configuration.

LibreNMS: Who provides paid support?

Config Services Ltd is the designated partner offering SLA-backed support and consultancy for LibreNMS.

Caddy: Caddy or Nginx?

Caddy is dramatically simpler to configure and removes certificate management. Nginx has the larger ecosystem and better peak throughput.

LibreNMS: Does LibreNMS require SNMP access to every device?

Yes, its core monitoring approach relies on SNMP polling, so devices must have SNMP enabled and reachable.

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