Clean up copied response headers
Paste headers from DevTools, curl or logs and turn them into a structured table that keeps status lines and continuation values readable.
HTTP Header Parser
Parse raw HTTP headers into categorized name/value rows.
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Inspect copied response headers from browsers, curl output and server logs without uploading them.
- Header names
- Header values
- Duplicate headers
- Security and cache fields
Find duplicate or malformed lines
The parser flags repeated header names and lines that do not contain a valid header separator, so review reports are easier to trust.
Review cache and content signals
Quick category counts help you confirm whether Content-Type, Cache-Control, Vary and similar response fields are present before deployment.
Check security header coverage
Use the issue list to spot missing production security fields such as Content-Security-Policy and X-Content-Type-Options.
Frequently asked questions
Yes. The parser accepts raw response headers from curl, browser network panels, HTTP clients and server logs.
No. It parses the pasted text locally in your browser and does not make network requests with your header data.
Some repeated headers are valid, but duplicates can also reveal accidental server configuration conflicts, so they are highlighted for review.
No. It checks presence and parse quality for common headers, but detailed policy review still needs manual testing.