Cache-Control Header Generator

Generate Cache-Control locally from public/private/no-cache/no-store modes, max-age, shared-cache, stale, immutable, and revalidation controls.

Base caching mode

max-age seconds

s-maxage seconds

stale-while-revalidate

stale-if-error

Flags must-revalidate immutable

ReadyGenerates response directives only; actual cacheability also depends on request method, status, other response fields, and cache implementation.

How to use this Cache-Control Header Generator

Build common HTTP Cache-Control response directives with explicit freshness and revalidation settings. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.