
HeaderFlex.app
HTTP Headers
Live HTTP Headers
Headers.me
Fiddler
HTTP Header Checker Tools

Sky Live HTTP Headers
WebSniffer
HTTP-Repeater (HTTP/s Live Headers) (Beta)
HTTP Header Analyzer
HTTP-TRACKER
Requestly
HTTP Header Spy
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.

Which is more popular?
Based on our record, Modify Header Value (HTTP Headers) seems to be more popular. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | requestheaders.com | mybrowseraddon.com |
| Pricing | — | |
| Platforms | — | |
| Company | 2023 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Check HTTP Status Codes, SSL Validation, WWW Authentication, Redirects, Access Control, Cache Control, Content Encoding, Cookie Data and more...
No description of Modify Header Value (HTTP Headers) yet.
What each product offers, as listed by its team.


Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using RequestHeaders.com and Modify Header Value (HTTP Headers). For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking RequestHeaders.com since Feb 2023.
Yep that started recently. I found a solution with the add-on Modify Header Value (HTTP Headers) , you need to add two rules:. Source: about 3 years ago
Going off of what a user said in the comments of another post complaining about this, you can get the old behaviour back by modifying the request headings. I've managed to do this using a Chrome extensions called Modify Header Value... Source: over 3 years ago
To change user agent on fenix (nighlty ,using custom collection )I use https://mybrowseraddon.com/modify-header-value.html It can also modify other header parameters . Source: over 4 years ago
When comparing RequestHeaders.com and Modify Header Value (HTTP Headers), you can also consider the following products.

A local-first ModHeader alternative: rewrite HTTP request & response headers via Chrome's native declarativeNetRequest. No backend, no account, no telemetry.
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Sky Live HTTP Headers is an open-source browser extension that visually displays HTTP requests and response headers from every website you visit.
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HTTP Headers allows you to quickly see the HTTP header information for the current URL.
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WebSniffer is an online tool to outlook HTTP request and response headers.
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The goal of this project is to adds information about the HTTP headers in three ways:
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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.
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