Modify HTTP(s) Request & Response Headers

Add, Delete, Override Request & Response Headers. Can be used to remove X-Frame-Options, Content-Security-Policy, CORS Issues, etc.

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Application and use cases

Here's how you can use Requestly's Modify Headers feature in your daily workflow...

Add, Remove and Override HTTP Headers

You can add, override and even remove headers from the URL provided. Modify headers like Authorization, Access-Control-Allow-Origin, etc.

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Add, Remove and Override HTTP Headers Requestly for chrome |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternativeAdd, Remove and Override HTTP Headers Requestly for firefox |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternativeAdd, Remove and Override HTTP Headers Requestly for edge |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternativeAdd, Remove and Override HTTP Headers Requestly for safari |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternativeAdd, Remove and Override HTTP Headers Requestly for macos |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternative
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Modify based on URL

Configure the criteria of URL on which the rules applies. Options like if the URL contains, equals or matches regex.

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Modify based on URL Requestly for chrome |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternativeModify based on URL Requestly for firefox |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternativeModify based on URL Requestly for edge |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternativeModify based on URL Requestly for safari |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternativeModify based on URL Requestly for macos |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternative
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Auto suggest header names

Request will suggest header names to ease your journey.

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Auto suggest header names Requestly for chrome |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternativeAuto suggest header names Requestly for firefox |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternativeAuto suggest header names Requestly for edge |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternativeAuto suggest header names Requestly for safari |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternativeAuto suggest header names Requestly for macos |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternative
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Pair Multiple Rules

Add multiple conditions in a rule to match any preferred use case.

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Pair Multiple Rules Requestly for chrome |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternativePair Multiple Rules Requestly for firefox |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternativePair Multiple Rules Requestly for edge |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternativePair Multiple Rules Requestly for safari |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternativePair Multiple Rules Requestly for macos |  proxyman alternatives | mocky.io alternative | Fiddler Alternative | charles proxy alternative
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Testimonials

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Andrew Thompson

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#Requestly #Debug & #Modify #network requests - loved by 100K+ #webdevs If you are a #webdeveloper, Requestly is for you. You can set up #URL #redirects, #rewrites, run custom JS, modify headers, etc. https://requestly.in/?ref=producthunt #requestly #producthunt

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Zane

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Fun fact: if you modify Chrome headers with something like requestly like so, and load this URL, you can access the iOS 4 App Store in Chrome 🤷

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Mike Mitchell

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To my developer and QA people: Check out Requestly, a chrome extension that lets you setup redirects, modify headers, switch hosts, insert user scripts and much more! https://requestly.io via @requestlyIO

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Matt Stow

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Requestly is, without a doubt, one of the must have extensions for web developers. I never knew how much I needed to modify network requests on the file until I could http://requestly.io

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Frequently Asked Questions

After installing the extension, Go to app.requestly.io/rules.Then create rule and select "Modify Headers". After that give the rule name, and from here you can add, override and remove headers by providing a Header name and value for that header. You can mention a certain URL on which you want this rule to work or you can leave it empty to work on all URLs.
Yes, you can use the Add Condition feature which which allows you to add more conditions to the rule.
Yes, at the time of rule creation the rule is activated and is applied on all websites. You can deactivate it at any time. You can also mention the specific URL on which the rule is to be applied.
You can also specify the Host or Path on the which the rule has to be applied. You can also specify whether the URL/Host/Path contains, equals or matches the string entered by you
Yes, existing headers can be overriden using the override headers option.

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