Dev
HTTP Header Generator
Writing API documentation or building a test fixture means filling in HTTP headers — and stopping to look up the exact syntax for `Cache-Control`, the shape of a bearer token, or how `Set-Cookie` with security attributes should look. This tool returns a shuffled set of real headers with valid example values. The only input is how many you want, from 1 to 10 (14 in the pool). The set covers authentication, caching, CORS, security, rate limiting, and content negotiation: a JWT `Authorization` bearer token, `Cache-Control: no-cache, no-store, must-revalidate`, `Content-Security-Policy`, `Set-Cookie` with `HttpOnly; Secure; SameSite=Strict`, `Strict-Transport-Security`, `X-RateLimit-Remaining`, `ETag`, and more. Swap the placeholder values — token, origin, path — for your real ones before using in production.
How to use
- Choose your options above
- Click Generate
- Copy your result
Detailed instructions
- Choose how many headers you want.
- Generate a set covering your scenario.
- Swap the example values for your own.
- Paste them into your request, test, or docs.
Use Cases
- •Filling in HTTP examples in API docs
- •Mocking request or response headers in tests
- •Learning what common headers do
- •Building a curl or REST client request fast
- •Demonstrating security headers correctly
Tips
- →Replace example tokens and origins with real values.
- →Match Content-Type to the body you actually send.
- →Use the security headers as a hardening checklist.
- →Keep header casing as shown for clarity.
FAQ
are the header values syntactically correct
Yes. Each follows the correct format and casing for its header type. You can paste them into curl, Postman, or documentation and only need to replace the example values — token, origin, path — with your own.
which security headers are in the pool
`Content-Security-Policy`, `Strict-Transport-Security`, and `Set-Cookie` with `HttpOnly`, `Secure`, and `SameSite=Strict` are all included. They serve as a useful reference when auditing what security headers a response is missing.
can the same header appear twice in one result
No. The generator shuffles the fixed pool of 14 headers and returns the first N, so each header appears at most once per generation.
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