Item logo image for Moqyy — API Mocking & Fetch/XHR Interceptor

Moqyy — API Mocking & Fetch/XHR Interceptor

5.0(

3 ratings

)
ExtensionDeveloper Tools45 users
Item media 5 (screenshot) for Moqyy — API Mocking & Fetch/XHR Interceptor
Item media 1 (screenshot) for Moqyy — API Mocking & Fetch/XHR Interceptor
Item media 2 (screenshot) for Moqyy — API Mocking & Fetch/XHR Interceptor
Item media 3 (screenshot) for Moqyy — API Mocking & Fetch/XHR Interceptor
Item media 4 (screenshot) for Moqyy — API Mocking & Fetch/XHR Interceptor
Item media 5 (screenshot) for Moqyy — API Mocking & Fetch/XHR Interceptor
Item media 1 (screenshot) for Moqyy — API Mocking & Fetch/XHR Interceptor
Item media 1 (screenshot) for Moqyy — API Mocking & Fetch/XHR Interceptor
Item media 2 (screenshot) for Moqyy — API Mocking & Fetch/XHR Interceptor
Item media 3 (screenshot) for Moqyy — API Mocking & Fetch/XHR Interceptor
Item media 4 (screenshot) for Moqyy — API Mocking & Fetch/XHR Interceptor
Item media 5 (screenshot) for Moqyy — API Mocking & Fetch/XHR Interceptor

Overview

Mock APIs, intercept fetch/XHR requests, and test frontend apps without backend. Built for frontend developers and QA testers.

Moqyy is the easiest way for frontend developers and QA testers to mock API responses and intercept network requests inside the browser. Mock APIs instantly, intercept **fetch** and **XMLHttpRequest (XHR)** calls, and test your frontend without waiting for backend endpoints. Moqyy is lightweight, fast, and built specifically for modern frontend workflows (React, Vue, Next.js, Angular). Key features • Intercept **fetch** and **XHR** calls. • Create API mock rules in one click. • Auto-fill request/response patterns and templates. • Save mock rules locally and import/export JSON. • Enable/Disable mocks globally or per-rule. • Capture real responses to use as a mock (Auto-capture). • Test different server responses (200, 400, 500, custom JSON). • Lightweight extension that won’t clutter your devtools. Who should use Moqyy • Frontend developers building UI without backend readiness. • QA teams testing client behavior for edge/backend error states. • Engineers who need fast, local API mocks without complex setup. Quick start 1. Install the extension. 2. Open the Network tab in Moqyy and trigger a fetch/XHR from your app. 3. Click the “+” next to a request to create a mock. 4. Edit the mock response and enable it — refresh your app and see the mocked response in action. Why Moqyy vs other tools • Focused on **API mocking** for frontend workflows (not a general network toolbox). • Simpler onboarding and a modern UI that developers prefer. • Built for speed — create useful mocks in under 30 seconds. If you find issues or want features, use the in-extension Feedback button — we read every message.

5 out of 53 ratings

Learn more about results and reviews.

Details

  • Version
    1.3.0
  • Updated
    November 19, 2025
  • Offered by
    dev.moqyy
  • Size
    282KiB
  • Languages
    English
  • Developer
    Mayank Banga
    Samridhi Grand Avenue Noida, Uttar Pradesh 201305 IN
    Email
    help@moqyy.com
    Phone
    +91 81269 95494
  • Trader
    This developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.

Privacy

Moqyy — API Mocking & Fetch/XHR Interceptor 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.

Moqyy — API Mocking & Fetch/XHR Interceptor handles the following:

Personally identifiable information
Financial and payment information
Location

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

Related

Requestly: Supercharge your Development & QA

4.4

Features: Intercept & Modify HTTPs Requests, API Mocking, GraphQL Mocking, Rest API Client, API Testing, Modify HTTP Headers, etc

DOM XSS Highlighter — Pro

0.0

Highlights user-controlled reflections in DOM to help detect risky contexts. Run only on sites you own or may test.

Mock Express: API Mocker & Interceptor

5.0

A Browser extension that intercepts and modifies HTTP requests/responses.

Requestly Intercept Modifier

5.0

To modify ajax responses on any page

[Experiment] Edit and Resend: Ajax Request Debugger in Chrome DevTools

3.8

Enhance Chrome DevTools with a new tab. Edit and resend fetch() / XHR requests. Efficiently debug or test your web applications.

tweak: mock and modify HTTP requests

4.7

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

Relay – Intercept, Modify & Run HTTP Requests in Your Browser

5.0

Intercept, edit, and run HTTP requests directly in your browser. No account needed.

Receptor

5.0

Intercept and modify fetch/xhr requests and responses on browser

Request Interceptor

4.0

Intercept Requests and add custom rules to modify request/response headers, block/redirect requests, modify query params.

Request Interceptor

4.5

Request Interceptor Extension for Chrome.

Network Request Capturer Pro

5.0

Professional network debugging tool. Capture, analyze and export HTTP requests with advanced filtering.

Request Proxy

5.0

Request Proxy - Browser request proxy tool for intercepting and modifying network requests and responses.

Requestly: Supercharge your Development & QA

4.4

Features: Intercept & Modify HTTPs Requests, API Mocking, GraphQL Mocking, Rest API Client, API Testing, Modify HTTP Headers, etc

DOM XSS Highlighter — Pro

0.0

Highlights user-controlled reflections in DOM to help detect risky contexts. Run only on sites you own or may test.

Mock Express: API Mocker & Interceptor

5.0

A Browser extension that intercepts and modifies HTTP requests/responses.

Requestly Intercept Modifier

5.0

To modify ajax responses on any page

[Experiment] Edit and Resend: Ajax Request Debugger in Chrome DevTools

3.8

Enhance Chrome DevTools with a new tab. Edit and resend fetch() / XHR requests. Efficiently debug or test your web applications.

tweak: mock and modify HTTP requests

4.7

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

Relay – Intercept, Modify & Run HTTP Requests in Your Browser

5.0

Intercept, edit, and run HTTP requests directly in your browser. No account needed.

Receptor

5.0

Intercept and modify fetch/xhr requests and responses on browser

Google apps