ToolsForNerds

Devtools Network Headers to JSON

Convert DevTools network headers into JSON format for easy use in code

Accepted formats:

header-name
header-value
another-header
another-value

Or:

Header-Name: Header Value
Another-Header: Another Value

About the Devtools Network Headers to JSON Converter

This free tool helps developers quickly convert HTTP headers from browser DevTools into JSON format. Perfect for copying headers from network requests and using them in your code, API testing, or HTTP client libraries.

Features:

  • Instant conversion from DevTools format to JSON
  • One-click copy to clipboard
  • Supports all HTTP headers
  • Example headers included
  • Works with Chrome, Firefox, Edge, and Safari DevTools

How to Use:

  1. Open DevTools (F12) in your browser
  2. Go to the Network tab
  3. Click on any request
  4. In the Headers section, copy the request headers
  5. Paste them into the input box
  6. Click "Convert to JSON"
  7. Copy the JSON output for use in your code

Use Cases:

  • Copying headers for fetch() or axios requests
  • Setting up API testing tools like Postman or Insomnia
  • Debugging HTTP requests
  • Creating mock headers for testing
  • Documenting API request formats