How to use this developer tool
- Paste or upload the expected source text.
- Review any options shown below the input.
- Select Extract Headers or press Ctrl/Cmd + Enter.
- Check the notes, then copy or download the output.
Curl Header Extractor
Extract request headers from a curl command into clean JSON. Both short and long header flags are recognized, quoted values are preserved, and duplicate header names are shown with their final effective value. The page does not contact the target URL or validate credentials. It helps with moving headers into API clients, test fixtures, or documentation while keeping the original curl command available for comparison.
Developer Input
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What this developer tool does
Curl Header Extractor turns the entered source into a structured or generated result that can be inspected before use.
Scans shell-aware curl tokens for -H and --header arguments, splits on the first colon, and records duplicate names.
Input stays in this browser tab. Always remove live secrets before sharing screenshots or downloaded results.
Example
Input
curl 'https://api.example.com/items' -H 'Accept: application/json' -H 'Authorization: Bearer token' --header 'X-Trace-ID: abc-123'
Running the sample produces output that reflects the parsed fields and reports any unsupported or security-sensitive detail.
Use cases
- Translate copied API documentation into project code.
- Inspect request, response, or header configuration during debugging.
- Create a reviewable draft for tests and documentation.
- Spot malformed, duplicate, or overly broad values before deployment.
Tips for reliable output
- Remove real tokens, cookies, and API keys before pasting.
- Keep quoted values intact when copying shell commands.
- Read warnings instead of assuming every option was converted.
- Test generated code against a staging endpoint first.
- Review browser and server security rules separately.
Processing details
Scans shell-aware curl tokens for -H and --header arguments, splits on the first colon, and records duplicate names. Processing is deterministic except where cryptographic random values are intentionally generated.
This browser tool does not execute remote requests, expand shell variables, inspect server behavior, or replace application-specific security review.
Frequently asked questions
Does Curl Header Extractor send my input to a server?
No. Processing runs in the browser and the page does not transmit the entered text.
What input does Curl Header Extractor support?
Paste a curl command containing headers using the syntax shown in the sample.
Can I use the generated output in production?
Use it as a reviewed starting point. Environment-specific security, authentication, and error handling still need verification.
Why might Curl Header Extractor report a limitation?
The parser handles documented common syntax and reports constructs that would require shell, browser, or server context.
How can I verify the Curl Header Extractor result?
Compare the parsed URL, headers, body, directives, or origins with the source and test the final configuration in a non-production environment.
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Output fields
| Field | Meaning |
|---|---|
| Output | Generated or parsed text |
| Summary | Counts and completion state |
| Notes | Warnings and review guidance |
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