HTTP Header Inspector - Response Headers & Status Checker

Name: HTTP Header Inspector - Response Headers & Status Checker
Author: Devity

View HTTP headers, status codes, CORS & security headers without DevTools. Debug API, XHR/fetch requests instantly.

As of June 2026, HTTP Header Inspector - Response Headers & Status Checker has 105 users in the Developer Tools category.

Devity Developer Tools

Chrome Web Store ↗.crx

Users+31.3%

105

Rating0%

—

— reviews

Reviews0%

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Version

1.0.1

Manifest V3

90-day change · In the last 90 days this extension 1 version update.

History

4 snapshots

Tracking since Apr 20, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 20, 2026	80	—	—	1.0.0
May 5, 2026	90	—	—	1.0.0
May 16, 2026	87	—	—	1.0.0
May 30, 2026	94	—	—	1.0.0
Now	105	—	—	1.0.1

Changelog

May 30, 2026

short_description

View HTTP response headers, status codes, and server info without DevTools. Debug API responses, CORS issues, and server configs.

View HTTP headers, status codes, CORS & security headers without DevTools. Debug API, XHR/fetch requests instantly.

Permissions & access

Permissions: storagewebRequest
Host access: <all_urls>

Screenshots

HTTP Header Inspector - Response Headers & Status Checker screenshot 1

About

Tired of digging through DevTools every time you need to check a website's headers? The HTTP Header Inspector offers a beautifully simple and efficient solution, allowing you to view full HTTP response headers, status codes, and server details directly from your browser's toolbar.

This extension is the perfect companion for web developers, SEO analysts, and security researchers. 
Use it to:

Debug API Responses: Quickly check headers to resolve issues with your APIs.
Troubleshoot CORS: Instantly see Access-Control-Allow-Origin and other CORS-related headers.
Analyze Server Configurations: Understand caching policies, server types, and more at a glance.

Key Features:
Instant Header Access: Get a full list of response headers with a single click.
Clear Status Codes: Immediately see the page's HTTP status.
Modern & Readable UI: A clean, dark-themed interface makes data easy to read.
Lightweight & Fast: Built for performance, it won't slow your browser down.

Install the HTTP Header Inspector today and streamline your development workflow!