HTTP Request Header Builder
HTTP Request Header Builder
Build a complete set of HTTP request headers by selecting from 30+ known header names with descriptions and common value suggestions. Generates formatted headers block, curl -H snippets, and JavaScript fetch object.
Build HTTP request headers and copy them as a headers block, curl flags, or a fetch() snippet.
HTTP Request Header Builder
Build a complete set of HTTP request headers by selecting from 30+ known header names with descriptions and common value suggestions. Generates formatted headers block, curl -H snippets, and JavaScript fetch object.
Common uses
- Build an Authorization: Bearer token header
- Generate a full header set for a JSON API call
Also searched as
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- generate curl -h header flags
- fetch headers object generator
- content-type application/json header example
- check request headers for mistakes
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- accept header builder
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Frequently asked questions
How do I build a set of request headers?
Pick from about 30 common header names (or type your own), fill in the values with one-click common-value suggestions, and toggle rows on or off. Warnings flag problems such as a malformed Accept value or a deprecated header.
What output formats does it produce?
A formatted headers block, curl -H snippets, and a JavaScript fetch headers object.
How do I make an Authorization Bearer header?
Choose Authorization from the list, which pre-fills a Bearer token template, and replace the placeholder with your token.
Is my data uploaded to a server?
No. This tool runs entirely in your browser — your input is processed locally on your device and is never uploaded or stored on a server.