HTTP Headers Decoder
NewParse and annotate raw HTTP headers — 60+ known headers.
See how it works
Watch a quick simulation of this tool in action — no file needed.
How to use HTTP Headers Decoder
Follow these steps — everything happens instantly in your browser.
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Step 1. Paste raw headers (one per line, Name: Value).
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Step 2. Click Parse headers.
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Step 3. Each header is shown with its description.
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Step 4. Click copy on any header to grab 'Name: Value'.
Why use this tool
Frequently asked questions
Everything you might want to know about http headers decoder.
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