Paste raw HTTP request or response headers to see them parsed into a labeled table, in your browser.
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- Runs entirely in your browser — your headers are never sent to a server
- Parses raw request or response headers into a labeled table
- Free, no account required
How it works
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1
Paste the string, expression, or value you want to inspect.
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2
It's parsed instantly and broken down on screen.
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3
Review the details or matches highlighted for you.
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4
Copy any part of the result you need.
Why use this tool
Every dev utility, one place
Format, convert, encode, decode, and generate — no more juggling ten tabs.
100% private, always
Every tool runs in your browser — your code and data are never sent anywhere.
Works on any device
Runs on Windows, Mac, Linux, iOS, and Android — nothing to install.
Instant results
No queues, no build step — results update as you type.
Built to handle real data
Full Unicode support and RFC-compliant parsing, edge cases included.
Free, always
Free to use, with no rate limits, sign-up, or trial period.
Frequently asked questions
Simply paste the raw HTTP response block exactly as provided by curl -i or your network inspector.
No, this utility does not make external requests; it purely parses text you have already obtained.
It lists the data cleanly but does not perform automated security audits on missing headers.
Standard parsing groups them into a comma-separated array under the single key name.
Yes, the initial HTTP protocol and status code (like 200 OK) are extracted and highlighted at the top.
From the blog
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Mastering Base64: What It Is, How It Works, and When Not to Use It
Base64 is everywhere in modern web development, from data URIs to authentication headers. Here is a deep dive into how it works and common pitfalls to avoid.
Demystifying JSON: How to Troubleshoot Common Parsing Errors
JSON is the backbone of web APIs, but syntax mistakes can halt your code. Here is how to identify and fix missing commas, unescaped strings, and trailing characters.
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