Caddy vs Postman
A source-aware comparison of pricing, documented capabilities and workflow fit.
Short answer
- Price: not directly comparable — Caddy is free, Postman is free tier available.
- How to start: Caddy is free, Postman is free tier available.
- Where they differ: only Caddy has open source / self-hostable and only Postman has sso (saml); both offer public api.
These lines are generated from the pricing we track, not from a paid placement. How we score tools.
What Caddy is
What Caddy isCaddy is a web server that obtains and renews TLS certificates automatically, with a configuration file most people can read. Automatic HTTPS is not a module to enable but the default behaviour: point a domain at it and a valid certificate is issued and renewed without a cron job or a separate client. A Caddyfile for a reverse proxy with TLS is a few lines where the equivalent elsewhere runs to dozens, which is why it is a common choice for small deployments and internal services.
What Postman is
What Postman isPostman is the most popular API platform globally, managing every stage of development. Once just a test tool, it now covers API design, documentation, and 'mock' server creation. It ensures flawless communication between frontend and backend. You can group requests into collections, share them with team members, and run automated tests on the cloud.
Side by side
| Caddy | Postman | |
|---|---|---|
| Category | Developer Tools | Developer Tools |
| How to start | Freeverified | Free tiernot a monthly price |
| Public API | Yes | Yes |
| Mobile app | No | No |
| Open source / self-hostable | Yes | No |
| SSO (SAML) | No | Yes |
| Visit | Caddy ↗ | Postman ↗ |
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What Caddy is built to do
- Automatic HTTPS
- Certificates are issued and renewed by default, with no separate ACME client.
- Readable configuration
- A Caddyfile for TLS and reverse proxy fits in a few lines.
- Single binary
- Ships as one static binary with no runtime dependencies to install.
- Admin API
- Configuration can be changed at runtime over an HTTP API without a restart.
What Postman is built to do
- API Collections
- Organize your requests by project and share them collaboratively.
- Environments
- Switch between Local, Staging, and Production setups with one single click.
- Automated Testing
- Integrate automated API tests into your CI/CD pipelines via Newman.
- API Network
- Discover and test thousands of public APIs from across the world in seconds.
Choose Caddy if
- Teams that want automatic HTTPS from a free, open source web server
- Self-hosters who prefer a single binary over a package plus certificate tooling
- Businesses that want paid private support, offered through sponsorship tiers
Skip Caddy if
- You require a contractual support SLA at a published price — sponsorship tiers are not priced on the site
- Your organisation forbids depending on sponsorship-funded projects
- You need a named commercial licence; the licence is not stated on the homepage
Choose Postman if
- One developer working alone — the free plan is a full API client with collections, environments and mock servers
- Teams that want a shared API workspace and are ready to pay per user
- Work where 1,000 monitoring requests a month is enough
Skip Postman if
- You need team collaboration — the free plan is a single user; Team is $19/user/mo billed annually ($25 monthly)
- You rely on webhooks, private NPM packages or data-driven testing; those start at Solo, $9/mo annual ($12 monthly)
- You cannot keep data on Postman's servers, which some collaboration features require
Evidence and freshness
Where a claim on this page comes from a vendor page, it is linked here.
Caddy: pros & cons
- HTTPS configured correctly by default
- Configuration is short and legible
- Single binary, easy to deploy
- Smaller community than nginx
- Fewer third-party guides
- Some advanced setups need plugins
Postman: pros & cons
- Universal Standard: The most widely accepted and used API tool in the industry.
- Scripting Power: Write automated tests for every API request using JavaScript.
- Documentation: Transform your collections into stylish API docs with one click.
- Mock Servers: Allow frontends to keep working even before the backend is ready.
- Resource Usage: The desktop app can consume quite a bit of RAM during heavy work.
- UI Bloat: For those just wanting to send a simple request, the UI can be overwhelming.
- Cloud Reliance: Some collab features require data to be held on Postman's servers.
Our verdict on Caddy
The easiest path to good TLS defaults. nginx still wins on ecosystem and examples.
Our verdict on Postman
Solo work is covered without paying; Team at $19/user/mo adds collaboration. The default choice for API workflows — overkill for one-off curl tests.
Published plans, side by side
Every figure below was read from the vendor's own pricing page and is shown with the sentence it came from. Where a vendor publishes no plan prices, we say so rather than guess.
Caddy
No published plan prices verified. Caddy either quotes on request or renders its prices in a way we could not read from the pricing page.
Postman
- Free$0/mo
Free $0 with 1 user, 50 AI credits/mo, 1,000 monitoring requests/mo, 5 integrations, 10,000 Postman API calls/mo
- Solo$9/mo billed annually
Solo $9/mo annual or $12 monthly
- Team$19/user/mo billed annually
Team $19/user/mo annual or $25 monthly
- Enterprise$49/user/mo billed annually
Enterprise $49/user/mo annual or $65 monthly
Caddy vs Postman: common questions
- Does Caddy or Postman have a free plan?
- Both do: Caddy is free, and Postman has a free tier with limits.
- What is the difference between Caddy and Postman?
- On the criteria we check, only Caddy has open source / self-hostable and only Postman has sso (saml); both offer public api. The table above lists every criterion side by side.