Cloud · head to head
Caddy vs Pulumi

Pulumi
Cloud
Modern infrastructure as code using programming languages
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Caddy smaller ecosystem than Nginx, so third-party guides and modules are fewer; Pulumi the free Individual plan allows one user and one concurrent stack update
- They diverge on capability: Caddy covers Automatic HTTPS, Pulumi covers Multi-language support.
Where they differ
Only the attributes on which Caddy and Pulumi actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Cloud).
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 Pulumi
- Multi-language support
- Multi-cloud
- State management
- Secrets management
- RBAC
- Stacks
- Automation API
- Policy as Code
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 Pulumi
- Small deployments where Nginx configuration is more effort than the problem warrantsnot Pulumi
- Reverse proxying internal services with TLS without a certificate workflownot Pulumi
Pulumi
- Infrastructure as codenot Caddy
- Cloud resource provisioningnot Caddy
- DevOps automationnot Caddy
- Multi-cloud managementnot 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
Pulumi
- The free Individual plan allows one user and one concurrent stack update
- The Team plan is $40 per month base including 40 credits, and caps the organisation at 10 users
- SAML/SSO, RBAC, audit logs and drift detection require the Enterprise plan at $400 per month base
- The per-resource rate rises from $0.1825 per resource per month on Team to $0.365 on Enterprise, so upgrading raises the unit price as well as the base fee
- Managed secrets are billed separately at $0.50 per secret per month on Team and $0.75 on Enterprise
- Self-hosting, SCIM user sync, audit log export and 24x7 support are only in Business Critical, which is custom priced with no published rate
- Team includes up to 500 resources and Enterprise up to 2,000, with everything beyond billed on demand as credits
Pricing, plan by plan
Caddy
Free- CaddyFree
- Full functionality
- Commercial use permitted
- Community support
Pulumi
Free- IndividualFree
- 1 user
- Unlimited projects/stacks
- 500 workflow minutes monthly
- Team$40/month
- Up to 10 users
- Secure collaboration
- CI/CD integration
- Enterprise$400/month
- Unlimited users
- SAML/SSO
- RBAC
- Business Critical$null/custom
- Self-hosting
- Advanced compliance
- SCIM integration
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.
Choose Pulumi if
- You need multi-language support.
- You want to start without paying.
- You work on Linux, Windows, Mac, Api.
- You also want multi-cloud.
Questions people ask
- Is Caddy or Pulumi better?
- Neither clearly leads. Caddy starts at Free and Pulumi at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Caddy or Pulumi?
- Caddy starts at Free and Pulumi at Free.
- Does Caddy or Pulumi run on more platforms?
- Caddy runs on Linux, macOS, Windows, Docker. Pulumi runs on Linux, Windows, Mac, Api.
- 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 Pulumi is typically brought in for.
- What can Caddy do that Pulumi cannot?
- Caddy covers Automatic HTTPS, Caddyfile, Reverse proxy, Single binary. Pulumi covers Multi-language support, Multi-cloud, State management, Secrets management.
Answered from the vendors’ own pages
Caddy: Is Caddy free?
Yes, open source under the Apache 2.0 licence, free for commercial use.
Pulumi: How much does Pulumi cost?
Pulumi offers a free Individual tier forever, Team plan at $40/month with 40 credits, and Enterprise at $400/month with 400 credits. Credit usage varies by resource type and workflow needs.
SourceCaddy: 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.
Pulumi: What is included in the Pulumi free tier?
The free Individual tier includes 1 user, unlimited projects/stacks, 500 workflow minutes monthly, and 5 million Neo tokens free.
SourceCaddy: Caddy or Nginx?
Caddy is dramatically simpler to configure and removes certificate management. Nginx has the larger ecosystem and better peak throughput.
Pulumi: How are Pulumi credits charged?
1 Pulumi Credit equals $1 USD. Credits are drawn from a shared pool. IaC resources cost $0.1825/month per resource on Team and $0.365 on Enterprise; ESC secrets cost $0.50-$0.75/month; workflow minutes cost $0.01 each.
SourcePulumi: Does Pulumi offer volume discounts?
Yes, the Enterprise tier ($400/month) includes volume discounts and is designed for approximately 2,000 IaC resources.
SourceRelated pages
Other head to heads
- Caddy vs Grafana Cloud
- Caddy vs Neon
- Caddy vs DigitalOcean
- Caddy vs AWS (Amazon Web Services)
- Caddy vs Fly.io
- Caddy vs Anyscale
- Caddy vs Fireworks AI
- Caddy vs Podman
- Caddy vs Railway
- Caddy vs Render
- Caddy vs Vault
- Caddy vs Wiz
- Caddy vs Beam Cloud
- Caddy vs Cerebrium
- Caddy vs DeepInfra
- Caddy vs Go
- Caddy vs Azure Functions
- Pulumi vs Grafana Cloud
- Pulumi vs Neon
- Pulumi vs DigitalOcean
- Pulumi vs AWS (Amazon Web Services)
- Pulumi vs Fly.io
- Pulumi vs Anyscale
- Pulumi vs Fireworks AI
- Pulumi vs Podman
- Pulumi vs Railway
- Pulumi vs Render
- Pulumi vs Vault
- Pulumi vs Wiz
- Pulumi vs Beam Cloud
- Pulumi vs Cerebrium
- Pulumi vs DeepInfra
- Pulumi vs Go
- Pulumi vs Azure Functions

