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Web Sniffer alternatives

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Web Sniffer is an online tool to outlook HTTP request and response headers. The received HTTP header is a part of the response sent by a server with a requested page. Web Sniffer collects information like response code, content type, server identifier, last modification time, and other details. This online HTTP header checker allows you to see the HTTP headers for any given website URL.

The tool is easy to use. You just need to type a website URL or a server’s IP address in the URL text field, and press submit. The URL sniffer will track the URL and check website headers. WebSniffer will then output the HTTP request header, HTTP response header, including the HTTP status code and, will also show you the content of the requested page. Some features of Web Sniffer include a list of user agents, including Googlebot, switching between HTTP/1.1 and HTTP/1.0 protocols, secure connections (HTTPS) support, and support for IP address sniffing.

Web Sniffer screenshotWeb Sniffer screenshotWeb Sniffer screenshot

Ranked alternatives

  1. 1
    Sky Live HTTP HeadersFree

    Sky Live HTTP Headers is an open-source browser extension that visually displays HTTP requests and response headers from every website you visit. You can instantly copy the requests and header information on a clipboard with one click.

    Sky Live HTTP Headers alternatives
  2. 2
    Modify Header Value (HTTP Headers)Free

    Modify Header Value (HTTP Headers) is a browser extension that allows you to add, modify or remove a header for any request to your preferred domains. This Add-on is very beneficial if you are a website designer, an app developer, or if you want to test a specific header for a request on a website. By clicking on the toolbar icon, a UI is opened to quickly switch the Addon ON or OFF or open the options page. Every header article has numerous options to change. You can add multiple header items and make them inactive or active individually. The extension is available for Firefox, Google Chrome, Opera, and similar engine-based browsers.

    Modify Header Value (HTTP Headers) alternatives
  3. 3
    HTTP-Repeater (HTTP/s Live Headers) (Beta)Free

    HTTP-Repeater (HTTP/s Live Headers) (Beta) is a browser extension that lets you capture browser requests and repeat the process in a loop automatically. You can capture every request and resend it in the same or changed the way. Additionally, you can manipulate and direct your own request with header information, your own HTTP method, and your own post-data. Each response is fully interpreted by your own browser. Therefore, you can keep an eye on websites for XSS bugs and other problems even without using an emulated path. All requests by HTTP-Repeater will be unique at all times.

    HTTP-Repeater (HTTP/s Live Headers) (Beta) alternatives
  4. 4
    HTTP Header AnalyzerFree

    HTTP Header Analyzer is an open-source browser extension that allows you to see and analyze the current HTTP request and response header from the website URL. The tool lets you view your headers even after the requests have been made. You don’t need other developer tools for receiving requests. Additionally, the page doesn’t need to be reloaded every time you receive a request. All in all, HTTP Header Analyzer is a great HTTP request handling tool that you can consider among its alternatives.

    HTTP Header Analyzer alternatives
  5. 5
    HTTP-TRACKERFree

    HTTP-TRACKER is an advanced browser extension that allows you to examine HTTP request headers, cookies, response Headers, website data, cookies and modify request headers before sending them. You can monitor the browser network for all tabs and pages on a solo page. HTTP-TRACKER can track network traffic sent from each tab or page and the response headers for each request.

    You can also filter the results by requests to capture, filter requests to view, can clear all captured data, compare with different requests, and make a single page view to see all the traffic in a centralized place instead of each tab. You can also modify the request headers prior to the distribution of requests for a domain or for a single URL.

    HTTP-TRACKER alternatives
  6. 6
    HTTP Header SpyFree

    HTTP Header Spy is a browser extension that allows you to inspect the request and response header of any website URL. It also detects and analyzes cookies after you load the page. With the HTTP Header Spy tool, you can auto-hide information panels like Response times, Server IP, XHR, and sub-frame requests after a specified time.

    The headers are also available in the browser action popup. The tool can show HSTS requests, colorful status indication icons, inspect from data, get parameters and cookies, and position in one of the four corners of the window. The micro model shows just the chosen response headers with easy single-click highlighting of the headers. Other features are a light and dark theme, filter headers, and highlighting the string pattern in header views.

    HTTP Header Spy alternatives
  7. 7
    Smart HeaderFree

    Smart Header is a browser extension that lets you manipulate the HTTP request headers and response header automatically. This powerful extension is designed to modify requests with ease. Everything is automatic, so you don’t need to add every entry manually. You can also import, export, or mix the configuration with other headers. You can filter the results by listing only the headers you want to see. An additional feature is synchronization with Chrome Sync that comes in handy if you collect the headers more often for development purposes.

    Smart Header alternatives
  8. 8
    HTTP Header LiveFree

    HTTP Header Live browser extension allows you to display the HTTP header, edit it, and send it. You can capture every request and resend it in the same or manipulated way. Moreover, you can manipulate and direct your own request with header information, HTTP method, and post-data.

    HTTP Header Live alternatives