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tweak: mock and modify HTTP requests

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4.6(

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Overview

Mock or modify your HTTP requests to test, develop and demo your web application

tl;dr tweak allows you to mock and modify HTTP requests without leaving the browser You can intercept requests/API calls and 🪄 ﹥ Modify ⁃ Response data and headers ⁃ Status code ⁃ Request payload 💸 ⁃ Request headers 💸 ﹥ Delay individual requests/API calls ﹥ Export and import rules to organize and share your configs with your team ﹥ Search requests in the background to import them automatically You can also: ﹥ Replace documents such as HTML/CSS/Images ﹥ Modify response and request headers globally across all browser tabs Premium 💸 ﹥ Modify the response data by writing custom JavaScript ﹥ Organize your workspace with collections ﹥ Change rules in bulk using global custom variables ﹥ Use advanced redirect and header modification techniques such as append/remove headers ﹥ Create mock data with random generators ﹥ Use tweak’s breakpoints and logpoints to debug requests/API calls Useful links 🔗 ﹥Getting started https://tweak-extension.com/docs/intro ﹥FAQs https://tweak-extension.com/faqs ﹥Changelog https://tweak-extension.com/changelog ﹥Support help@tweak-extension.com

4.6 out of 5239 ratings

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Details

  • Version
    9.1.0
  • Updated
    September 13, 2026
  • Features
    Offers in-app purchases
  • Size
    516KiB
  • Languages
    English
  • Developer
    Website
    Email
    help@tweak-extension.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization

tweak: mock and modify HTTP requests has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

tweak: mock and modify HTTP requests handles the following:

Location
User activity

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

Related

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Mokku

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Netify

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Inssman: Open-Source: Modify HTTP Request

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axe DevTools - Web Accessibility Testing

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Requestly: Intercept & Modify HTTP Requests

4.5

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CORS Unblock

4.1

No more CORS error by appending 'Access-Control-Allow-Origin: *' header to local and remote web requests when enabled

MockMan - mock APIs

4.1

Mocks api responses for AJAX (XHR) requests. (Postman for Frontend)

Allow CORS: Access-Control-Allow-Origin

3.4

Easily add (Access-Control-Allow-Origin: *) rule to the response header.

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