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 a powerful Chrome extension designed for immediate inspection of HTTP headers, cookies, and response times without the need to open developer tools. Instantly view detailed request-response headers right on the webpage, streamlining your web debugging process.

Notable features include auto-hiding of info panels, color-coded status icons, server IP display, tracking of XHR and sub-frame requests, and a full redirect path viewer. Customize your experience with micro mode, customizable header filters, easy single-click highlighting, and position panels in any corner of your screen. Choose between light and dark themes to match your workflow. Headers are also accessible via the browser action popup, making HTTP Header Spy a versatile tool for developers and network analysts alike.

Manifest V2
Users:
10,000+
Rating:
3.79
(62)
Version:
2.0.49 (Last updated: 2018-09-26)
Creation date:
2018-09-26
Permissions:
  • http://*/*
  • https://*/*
  • tabs
  • activeTab
  • storage
  • webRequest
Size:
152.58K
URLs:
Website
Full description:
See detailed description
Updated:
19 hours ago

Other platforms

HTTP Header Spy (v2.0.49)
281 4.80 (5)

User reviews

Users find HTTP Header Spy to be a simple and effective tool for inspecting HTTP headers and debugging redirects, especially appreciating its micro mode. However, multiple users criticize recent updates that added frequent pro-version purchase prompts and costly subscription fees. The micro mode has usability issues, and the extension lacks support for HTTP/2 and XHR requests. Some also note design and translation shortcomings. Overall, while useful, recent monetization changes and usability regressions have led to mixed user sentiments.
Pros
  • Simple and effective for debugging HTTP headers.
  • Provides a useful micro mode that's non-intrusive.
  • Helps with inspecting redirects and HTTP requests.
  • The extension is generally appreciated as a good tool by users.
  • Works well and is easy to use.
Cons
  • Recent updates introduced frequent annoying 'Get the PRO version' notifications.
  • Pro version functions are behind a costly subscription model, leading to dissatisfaction.
  • Micro mode has issues such as extended visibility and interface problems.
  • Does not support HTTP/2 and lacks features for XHR requests.
  • Design and language translation quality need improvement.
Recent reviews
micro mode is awesome
by Elvin Aslanov, 2022-02-09

very good and works great
by Furkan Ali, 2021-11-27

Nice Extension
by Lakshitha Wickramage, 2021-06-30
View all user reviews

Extension safety

Risk impact
High risk impact

HTTP Header Spy requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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  • High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Moderate risk likelihood

HTTP Header Spy is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this extension.

Risk likelihood analysis details
  • High This extension publisher URL may be invalid
  • High **** ********* ******* *** *** ** *******
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  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
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  • Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details

Promo images

HTTP Header Spy marquee promo image
Marquee promo image
Small promo image

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