API Mocker V1

Intercept, modify and mock HTTP requests

As of June 2026, API Mocker V1 has 16 users and a 5.00/5 rating from 1 reviews in the Developer Tools category.

Usersup 6.7 percent+6.7%
16
16
Ratingno change0%
5.00
1 reviews
Reviewsno change0%
1
Version
1.0.0
Manifest V3

History

5 snapshots

Tracking since Apr 1, 2026.

16.321411.68Apr 1, 2026Jun 3, 2026
View as table
DateUsersRatingReviewsVersion
Apr 1, 2026155.0011.0.0
Apr 18, 2026125.0011.0.0
May 15, 2026155.0011.0.0
May 24, 2026165.0011.0.0
Jun 3, 2026145.0011.0.0
Now165.0011.0.0

Permissions & access

Permissions
storage
Host access
<all_urls>

Screenshots

API Mocker V1 screenshot 1

About

API Mocker - The Ultimate API Mocking & Testing Tool
Short Description
Intercept, modify, and mock HTTP requests directly in your browser. No backend required.

Long Description
API Mocker is a powerful developer tool that gives you complete control over your browser's network traffic. Whether you're a frontend developer waiting for backend APIs, a QA engineer testing edge cases, or a designer tweaking UI states, API Mocker streamlines your workflow by allowing you to simulate any API response instantly.

Why You Should Install It:
🚀 Zero Backend Dependency: Start building your frontend immediately. Define API rules and get JSON responses without writing a single line of backend code.

⚡ Accelerate Development: Stop waiting for API deployment. Mock missing endpoints and proceed with your UI implementation.

🧪 Test Edge Cases Easily: How does your app handle a 500 error? Or a 404? Or a slow network? Simulate these scenarios with a single click to ensure your app is robust.

Key Features:
Intercept & Modify: Automatically capture XHR and Fetch requests matching your custom URL patterns.
Dynamic Rule Management: Create, edit, and toggle mocking rules on the fly with a clean, intuitive interface.
Flexible Matching: Support for exact URL matching and wildcard patterns (e.g., /api/users/*).
Full Response Control: Customize HTTP status codes (200, 400, 500, etc.), response headers, and response bodies (JSON, Text, XML).
Network Simulation: Add artificial delays to simulate slow network connections and loading states.
Visual Notifications: Get real-time feedback when a request is intercepted and mocked.
How It Works:
Open the API Mocker interface.
Add a new rule (e.g., Match https://api.example.com/users).
Define the response you want (Status 200, Body: [{ "id": 1, "name": "Test User" }]).
Browse your site. When the app requests that URL, API Mocker intercepts it and serves your defined response instantly.
Perfect for: Frontend Developers, QA Testers, and Full Stack Engineers looking for a lightweight, browser-based mocking solution.

Privacy-First: API Mocker runs entirely within your browser. No data is sent to external servers.

Technical

Version
1.0.0
Manifest
V3
Size
61.29KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
cdefiomopfbidjlidpaacadeecmcmeac
Developer ID
ua7a0f860d0632a050dfa8b81019f64aa
Developer Email
[email protected]
Created
Dec 16, 2025
Last Updated (Store)
Dec 16, 2025
Last Scraped
Jun 3, 2026
Website
Support URL
Privacy Policy

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Data sourced from the Chrome Web Store · last verified Jun 3, 2026.