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Cloud · head to head

Caddy vs LaunchDarkly

Caddy logo

Caddy

Cloud

Web server with automatic HTTPS by default

From
Free
Rated
-
Full reviewWebsite
LaunchDarkly logo

LaunchDarkly

Technology

Ship fast. Rest easy.

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; LaunchDarkly pricing scales rapidly with monthly active users, becoming expensive at scale
  • They diverge on capability: Caddy covers Automatic HTTPS, LaunchDarkly covers Feature flags.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Caddy and LaunchDarkly actually diverge.

Attributes where Caddy and LaunchDarkly differ
AttributeCaddyLaunchDarkly
Pricing modelOpen source, no licence feeUnknown
PlatformsLinux, macOS, Windows, DockerWeb, Cloud, APIs
CategoryCloudTechnology
FoundedUnknown2014

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 LaunchDarkly

  • Feature flags
  • Progressive rollouts
  • User targeting
  • A/B testing
  • Kill switches
  • Audit log
  • Multi-environment
  • SDKs for all platforms

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 LaunchDarkly
  • Small deployments where Nginx configuration is more effort than the problem warrantsnot LaunchDarkly
  • Reverse proxying internal services with TLS without a certificate workflownot LaunchDarkly

LaunchDarkly

  • Progressive deliverynot Caddy
  • Feature experimentationnot Caddy
  • Risk mitigationnot Caddy
  • Performance optimizationnot Caddy
  • Infrastructure migrationnot 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

LaunchDarkly

  • Pricing scales rapidly with monthly active users, becoming expensive at scale
  • Limited seats for engineers on standard plans, forcing upgrade to enterprise
  • Advanced features like experimentation and audit logs require higher-tier plans
  • Occasional reliability issues and backend delays reported by users

Pricing, plan by plan

Caddy

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

LaunchDarkly

Free
  • DeveloperFree
    • Unlimited seats
    • Unlimited feature flags
    • A/B tests and experiments
  • Foundation$undefined/mo
    • $12 per connection
    • $10 per 1K MAU
    • Targeted segmentation
  • Enterprise$undefined/mo
    • Custom pricing
    • Advanced automation
    • Compliance features

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 LaunchDarkly if

  • You need feature flags.
  • You want to start without paying.
  • You work on Web, Cloud, APIs.
  • You also want progressive rollouts.
LaunchDarkly review

Questions people ask

Is Caddy or LaunchDarkly better?
Neither clearly leads. Caddy starts at Free and LaunchDarkly at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Caddy or LaunchDarkly?
Caddy starts at Free and LaunchDarkly at Free.
Does Caddy or LaunchDarkly run on more platforms?
Caddy runs on Linux, macOS, Windows, Docker. LaunchDarkly runs on Web, Cloud, APIs.
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 LaunchDarkly is typically brought in for.
What can Caddy do that LaunchDarkly cannot?
Caddy covers Automatic HTTPS, Caddyfile, Reverse proxy, Single binary. LaunchDarkly covers Feature flags, Progressive rollouts, User targeting, A/B testing.

Answered from the vendors’ own pages

Caddy: Is Caddy free?

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

LaunchDarkly: What does the free Developer plan include?

The free Developer plan includes unlimited seats, unlimited feature flags, A/B tests and experiments, 30 SDKs, 10 million logs and traces, 5,000 session replays and errors, and 14 days of data retention.

Source
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.

LaunchDarkly: How does LaunchDarkly pricing scale?

Foundation plan pricing is $12 per connection plus $10 per 1,000 Monthly Active Users (MAU). Enterprise and Guardian plans have custom pricing based on usage, advanced features, and compliance requirements.

Source
Caddy: Caddy or Nginx?

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

LaunchDarkly: Does LaunchDarkly integrate with Jira and Slack?

Yes, LaunchDarkly integrates with Jira Cloud, allowing you to link feature flags to Jira issues and create issues from observability data. It also integrates with Slack for flag notifications and allows authorized members to trigger flag changes from Slack.

Source
LaunchDarkly: What is dark launching and how does LaunchDarkly enable it?

Dark launching keeps code changes hidden in production until ready to enable. LaunchDarkly enables this through feature flags that let teams safely test code in production before rolling out to users.

Source
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