Make Your Website More Secure: 8 Free Header Tools

Generate CSP, HSTS, cookie and CORS headers to defend against XSS and clickjacking — free, no code.

HTTP Security Headers Generator

Generate strong HTTP security headers for nginx, Apache, Netlify or as raw headers.

Content Security Policy Generator

Build a Content-Security-Policy header or meta tag from directives and allowed hosts.

HSTS Generator

HSTS Generator — runs 100% in your browser. No data is uploaded; nothing leaves your device.

Set-Cookie Header Builder

Build a hardened Set-Cookie header with Secure, HttpOnly and SameSite — runs 100% in your browser. No data is uploaded; nothing leaves your device.

Referrer Policy Generator

Referrer Policy Generator — runs 100% in your browser. No data is uploaded; nothing leaves your device.

Permissions Policy Generator

Permissions Policy Generator — runs 100% in your browser. No data is uploaded; nothing leaves your device.

CORS Config Generator

CORS Config Generator — runs 100% in your browser. No data is uploaded; nothing leaves your device.

COOP / COEP Header Generator

Generate Cross-Origin Opener/Embedder Policy headers for isolation — runs 100% in your browser. No data is uploaded; nothing leaves your device.

1,000+ more free tools

Every tool on ToolJolt is free, runs in your browser and needs no sign-up.