HTTP Header Parser
Paste raw HTTP headers and parse them into structured header fields.
Lines in the form Name: Value are parsed as headers. Status lines or request lines are ignored in the header table.
| Header | Value |
|---|
Privacy: parsing runs locally in your browser. No header content is stored or transmitted.
How it works
Paste raw headers, parse each Name: Value line, and inspect duplicates, counts, and normalized output.
Examples
- Parse response headers copied from developer tools
- Inspect repeated headers such as Set-Cookie
- Convert raw header blocks into structured output
When to use this tool
This tool is designed for quick, practical tasks such as everyday calculations, data formatting, or simple conversions. It is best used when you need fast results without installing software or using complex tools.
When to use
- Quick checks or one-time calculations
- Validating or converting data before using it elsewhere
- Simple tasks that do not require advanced software
When not to use
- Critical financial, legal, or medical decisions
- Large-scale or automated processing
- Situations requiring guaranteed precision beyond basic validation
Always review results before using them in important contexts.
About this tool
This tool helps you perform quick utility operations directly in your browser. It runs entirely in your browser without sending data to a server.
You can use this tool when handling simple tasks without installing additional software. The results should be interpreted as a processed output based on your input data.
FAQ
- What does this HTTP header parser do?
It parses raw HTTP header text into structured header name/value pairs.
- Can it detect duplicate headers?
Yes. It highlights repeated header names and counts total parsed lines.
- Does it parse a full HTTP request?
This tool focuses on header lines. You can paste a request or response block, and it will parse lines that match header syntax.
- Are my headers stored?
No. Parsing runs locally in your browser and is not stored or transmitted.