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Cloud · head to head

Caddy vs TanStack Start

Caddy logo

Caddy

Cloud

Web server with automatic HTTPS by default

From
Free
Rated
-
Full reviewWebsite
TanStack Start logo

TanStack Start

Web Development

Full-stack React framework with type-safe server functions and TanStack Router

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; TanStack Start still in Release Candidate status, not yet production stable
  • They diverge on capability: Caddy covers Automatic HTTPS, TanStack Start covers Full-document SSR with streaming.

Where they differ

Only the attributes on which Caddy and TanStack Start actually diverge.

Attributes where Caddy and TanStack Start differ
AttributeCaddyTanStack Start
Pricing modelOpen source, no licence feeopen-source
PlatformsLinux, macOS, Windows, DockerWeb
CategoryCloudWeb Development

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 TanStack Start

  • Full-document SSR with streaming
  • Type-safe server functions
  • TanStack Router integration
  • Middleware system
  • Server routes and API endpoints
  • Experimental RSC support
  • Vite and Rsbuild support

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

TanStack Start

  • Building type-safe full-stack React applicationsnot Caddy
  • Projects requiring type safety across client and server boundariesnot Caddy
  • Applications leveraging advanced routing patterns and nested layoutsnot Caddy
  • Deployments across multiple platforms with consistent codebasenot 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

TanStack Start

  • Still in Release Candidate status, not yet production stable
  • Smaller community compared to Next.js with less third-party support
  • Documentation not as comprehensive as more established frameworks
  • Less mature ecosystem for edge deployment compared to specialized frameworks

Pricing, plan by plan

Caddy

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

TanStack Start

Free

No published plan breakdown. See the TanStack Start review.

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 TanStack Start if

  • You need full-document ssr with streaming.
  • You want to start without paying.
  • You also want type-safe server functions.
TanStack Start review

Questions people ask

Is Caddy or TanStack Start better?
Neither clearly leads. Caddy starts at Free and TanStack Start at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Caddy or TanStack Start?
Caddy starts at Free and TanStack Start at Free.
Does Caddy or TanStack Start run on more platforms?
Caddy runs on Linux, macOS, Windows, Docker. TanStack Start runs on 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 TanStack Start is typically brought in for.
What can Caddy do that TanStack Start cannot?
Caddy covers Automatic HTTPS, Caddyfile, Reverse proxy, Single binary. TanStack Start covers Full-document SSR with streaming, Type-safe server functions, TanStack Router integration, Middleware system.

Answered from the vendors’ own pages

Caddy: Is Caddy free?

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

TanStack Start: Is TanStack Start production-ready?

TanStack Start is currently in Release Candidate status. While functional and used in production by some teams, it has not yet reached stable v1.

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.

TanStack Start: How do type-safe server functions work in TanStack Start?

Server functions are automatically typed on the client side, enabling IDE autocomplete and type checking when calling server functions from client code.

Source
Caddy: Caddy or Nginx?

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

TanStack Start: What deployment platforms are supported by TanStack Start?

TanStack Start supports Cloudflare Workers, Node.js, Netlify, Railway, and other platforms through custom adapter configuration.

Source
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