HTTP Header Spy

HTTP Header Spy enables you to inspect request- response headers and cookies right after page load with no extra clicks.

HTTP Header Spy is available to install from Chrome Web Store and for download from this page. It has 10,000+ active users The latest version is 2.0.49, and it was published 3 years ago.

Install from Chrome Web Store
View source code
Total download count: 28 (Only count downloads from Chrome-Stats)

All available versions

You can find the current and older versions of HTTP Header Spy here. You can download the archived versions or inspect their source codes.

As a free user, you can only download the latest version.

Upgrade to download older versions
 1 version available for download.

Install CRX file

Option 1: The easy way (for Windows users only)

  1. Download and run chrome-stats.exe file on your PC. This method will allow you to install Chrome extensions directly from chrome-stats.com in one click. You only need to do this once!
  2. Type in chrome://restart in the URL bar to restart the browser for the changes to take effect.
  3. Download and install the HTTP Header Spy CRX file

Option 2: Advanced method

  1. Download HTTP Header Spy CRX file
  2. NOTE: Sometimes the browser may block downloading / installing CRX file from outside the Chrome Web Store. If so, you may need to use option 1, or download the ZIP file instead.
  3. In the URL bar, go to chrome://extensions
  4. Enable Developer mode
  5. Drag and drop the downloaded HTTP Header Spy CRX file into the Extensions page
  6. When prompted, click Add extension to install HTTP Header Spy.

Install ZIP file

  1. Download and unpack the HTTP Header Spy ZIP file to a directory of your choice.
  2. In Chrome browser, go to chrome://extensions
  3. Enable Developer mode.
  4. Click on the Load Unpacked button.
  5. Select the directory of with the unpacked HTTP Header Spy ZIP file from step 1. HTTP Header Spy is now installed on your browser.

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