HTTP Header Viewer

Inspect status and response headers from your browser. CORS may limit visibility on some sites.

Best-effort network mode — Requests run from your browser. Many sites block CORS, so some results may show as Unverified/Blocked. No proxy server is used.

Paste URLs or text

Tip: drag & drop a TXT/CSV onto this card, or use Import below.

Import TXT Import CSV

Tool Options

Working…

Results

Results will appear here…

How It Works

Fast URL utilities that run in your browser.

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Paste or import

Paste text/URLs or import a TXT/CSV file. Nothing is uploaded to our servers for processing logic.

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Process in browser

All parsing runs locally in your browser.

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Copy or download

Export results as TXT, CSV, or JSON instantly.

Network checks are best-effort due to browser CORS rules.

About HTTP Header Viewer

View HTTP response headers such as cache-control, content-type, HSTS, CSP and X-Frame-Options. Browser best-effort — some origins hide headers via CORS. Designed for SEO, marketing, and developer workflows with copy/export support and bulk-friendly input.

FAQs

Are my URLs uploaded?

Parsing and cleaning run in your browser. Network tools may request target websites directly from your device (CORS best-effort).

Is this free?

Yes. FreeConverter.app online URL tools are free to use.

Do I need an account?

No account or installation is required.