tweak: mock and modify HTTP requests

tweak allows you to mock and modify HTTP requests without leaving the browser

Tweak is a powerful Chrome extension that allows developers to mock and modify HTTP requests without leaving the browser. You can easily intercept requests to change response data, headers, status codes, and request payloads. It supports delaying individual requests and organizing configurations via export/import features.

Premium features include custom JavaScript to modify responses, bulk rule changes with global variables, random data generators for mock data, and tools like breakpoints and logpoints for debugging. Note that redirecting requests or replacing webpage documents like HTML or images is not supported. Tweak streamlines web development by enabling flexible HTTP request manipulation all within your browser.

By:
tweak
Daily users:
1,707 -23
Rating:
4.14
(28)
Version:
8.4.0 Last updated: 2025-04-10
Version code:
5927078
Creation date:
2020-06-27
Risk:
High risk impact Moderate risk likelihood
Permissions:
  • storage
  • unlimitedStorage
  • tabs
Size:
2.47MB
Email:
he*****@tweak-extension.com
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Browser Add-ons
Updated:
a day ago

Other platforms

tweak: mock and modify HTTP requests (v8.4.0)
50,000 4.67 (213)

User reviews

Users praise the add-on for its ease of use, effective mocking features, and time-saving capabilities in development and debugging tasks. However, multiple reviews highlight significant issues with reliability and compatibility on Firefox, including failure to intercept requests, outdated versions, and occasional glitches. While the interface is generally well-liked, some functional limitations and confusing UI behaviors are noted. Overall, the tool is appreciated when it works, but many encounter frustrating inconsistencies and lack of updates specifically for Firefox support.
Pros
  • Easy to use with setup and mocking achievable in a few minutes
  • Has saved significant development time by enabling request interception and mocking
  • Provides all necessary features like intercepting requests and replacing with mock responses
  • Nice-looking UI that users find appealing and practical
  • Effective for debugging by allowing custom status codes and error messages
Cons
  • Frequently unreliable or non-functional in Firefox, with many users reporting failure to intercept API calls
  • Extension seems outdated and incompatible with recent Firefox versions, causing errors and unexpected behavior
  • Limited capability, such as inability to mock more than one API at a time
  • Confusing UI elements like disappearing popups which may hinder usability
  • Some users experience delays and errors instead of expected mocked responses
Recent reviews
by Fi*****, 2025-04-16

by 天灭*****, 2025-04-01

by 远离*****, 2025-02-15
View all user reviews ›

Extension safety

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

tweak: mock and modify HTTP requests requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
  • Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Browser Add-ons, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

tweak: mock and modify HTTP requests is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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