HTTP Header Parser turns a pasted block of raw headers into a readable list so Cookie, Cache-Control, and CORS fields stop blending into one wrapped log line.
Copy headers from curl -v, browser DevTools, or a proxy, paste them into the tool, and read the structured list. Use it when a single missing header explains an entire outage.
Parsing stays in the page, which is ideal for staging traces that should not be uploaded to a third-party paste site.
What HTTP Header Parser does
Split raw HTTP header text into inspectable name and value pairs.
- Input for raw header blocks
- Parsed list of header entries
- Useful for both request and response dumps
- Hint text under the controls
- Local parsing without a live HTTP call
Who HTTP Header Parser is for
- Backend developers comparing gateway vs origin headers
- Frontend engineers debugging CORS preflights
- Support staff reading customer curl output
- Students learning how HTTP messages are structured
How to use HTTP Header Parser
1. Open HTTP Header Parser on beeforge.dev.
2. Paste a raw header block copied from DevTools, curl, or a proxy.
3. Run the parse action on the page.
4. Scan the resulting list for duplicates, typos, or missing fields.
Features
- Handles multi-line header dumps
- Surfaces each header on its own row for scanning
- No need to hit a live URL to inspect text you already have
- Pairs with user-agent parsing when UA strings are dense
- Client-side only for pasted text
Examples
- Find whether Access-Control-Allow-Origin is present on a failing API response.
- Spot duplicate Set-Cookie lines in a login flow capture.
- Clean a support email attachment of headers before filing a bug.
Tips and limits
- Omit Authorization bearer tokens before sharing parsed output with others.
- Folded legacy header continuations are rare; unfold manually if a parser splits oddly.
- HTTP/2 pseudo-headers like :status may appear in some dumps; interpret carefully.
- This tool does not fetch URLs; it only parses text you paste.
Related tools
- User-Agent Parser when a User-Agent line needs its own breakdown
FAQ
Can it fetch headers from a live site?
No. Paste headers you already captured. Use curl or DevTools to collect them first.
Where is parsing done?
In your browser. Header text is not uploaded to BeeForge for parsing.
Does order matter?
HTTP header order is often insignificant, but duplicates can matter. The list helps you see multiples.
What about binary bodies?
Paste headers only. Bodies belong in a payload formatter if they are JSON.
Why did a long line split wrong?
Some logs insert wrapping. Remove artificial breaks between name and value, then parse again.