The HTTP Header Generator is an essential tool for developers working with HTTP requests and API development. It allows you to create HTTP headers in the standard format, with a library of common headers for quick access. Perfect for API testing, curl command generation, and understanding HTTP header structure.
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Add header name-value pairs using the form. You can add multiple headers by clicking the '+' button. The tool automatically generates the header string in the standard HTTP header format (Name: Value).
Yes! Click on any header from the 'Common Headers' library to quickly add it to your header list. Common headers include Content-Type, Authorization, Accept, User-Agent, and more.
Headers are generated in the standard HTTP header format: 'Header-Name: Header Value', one per line. This format is compatible with curl commands, HTTP requests, and API testing tools.
Yes! Our HTTP header generator is 100% free with no registration required, no usage limits, and no hidden fees. You can generate as many HTTP headers as you need for your development work.
No, all header generation happens locally in your browser. We don't store, save, or have access to any headers you generate. Your privacy is completely protected.
Yes! Click the copy button to copy all generated headers to your clipboard. You can then paste them into curl commands, API testing tools, or your code.
Common headers include Content-Type (specifies data format), Authorization (authentication tokens), Accept (response format preference), User-Agent (client identification), Cache-Control (caching behavior), and many more for various HTTP operations.
Yes! The generated headers are in the standard format compatible with curl. Use the -H flag: curl -H 'Header-Name: Header Value' https://example.com. You can add multiple -H flags for each header.
Request headers are sent by the client (browser) to the server, while response headers are sent by the server to the client. This tool generates headers that can be used in both contexts, depending on your needs.
Yes! You can add any custom header name and value. Custom headers often start with 'X-' (e.g., X-API-Key, X-Custom-Header), though this convention is not required in modern HTTP.
Use the headers option: fetch(url, { headers: { 'Header-Name': 'Header Value' } }). For multiple headers, add them as key-value pairs in the headers object. The generated format can be easily converted to this format.