API Response Modifier icon

API Response Modifier

by api response modifier · Tools
Manifest V3 Free
View in Chrome Web Store Data as of 19 Oct 2026

Modify API responses in real-time

Users
64
+12 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#99K
#83K among extensions
Version
1.0.0
updated 18 May 2025

Users

monthly, 17 months
03264May 2025Feb 2026Oct 2026
Latest, 19 Oct 2026: 64 usersMove the mouse over the chart for any month

Ratings count

monthly, 17 months
001May 2025Feb 2026Oct 2026
Latest, 19 Oct 2026: 1 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About API Response Modifier

Are you looking for a simple way to test how your app behaves with different API responses? Searching for a developer-friendly tool that lets you alter API data instantly? The API Response Modifier extension allows you to intercept and modify API responses in real-time without touching the backend. Whether you're debugging, testing edge cases, or simulating error scenarios, this extension offers a seamless solution with just a click. Key Features Real-Time API Editing - Modify response bodies instantly as they load—no need to refresh the server. One-Click Activation - Enable or disable response changes with a single click from your browser. Custom Rules Setup - Create specific rules to alter headers, status codes, or body content. Developer-Friendly UI - A clean and intuitive interface built for developers and testers. How to Use in Simple Steps Install the Extension - Add the API Response Modifier extension to your Chrome browser. Open Developer Tools - Go to the DevTools panel and find the extension tab. Set Your Rules - Define the URL patterns and the exact changes you want to apply. Refresh and Test - Reload your page to see the modified API response in action. Why It Is Useful This tool is extremely useful for testing frontend applications without waiting for backend changes. It helps simulate various API conditions such as errors, slow responses, or modified data—all in real time. To Whom It Is Useful It’s perfect for front-end developers testing UI behavior, QA testers simulating different scenarios, and API integrators who need to test edge cases or missing data.

Growth

WindowUsersChangeRatingsRating
7 days−4−5.9%00.00
30 days+12+23.1%00.00
6 months+12+23.1%00.00
1 year+46+255.6%00.00

Chrome Web Store search rankings

Where API Response Modifier appears when people search the store, with the 30 day change
Search phrasePosition30 days
response#38+1

Version history

1 versions recorded
1.0.018 May 2025

Details

Category
Tools
First seen
18 May 2025
Size
32 KB
Languages
en
Pricing
Free
Privacy policy
drive.google.com
Extension ID
llgeplblcomifpcfmfbpapnjgeojnkmh

Permissions and risk

Moderate riskimpact 3, likelihood 1
Permissions
storagetabsnotifications
Site access
<all_urls>
Can read and change data on every website you visit.

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