CRX id
dbcmekejnbcejobnahedglfapjaodpli
dbcmekejnbcejobnahedglfapjaodpli
Description from extension meta
A Browser extension that intercepts and modifies HTTP requests/responses.
Image from store
Description from store
Mock Express is a powerful browser extension designed for developers and testers to intercept, inspect, and modify HTTP requests and responses—all directly from the browser. Whether you're working with unstable APIs, simulating edge cases, or testing UI behavior under different backend conditions, Mock Express gives you the tools you need.
🚀 Key Features
🔧 Request Actions
Modify Request
Alter headers, body content, or URL of outgoing API requests before they’re sent.
Block Request
Instantly stop specific API calls from being made—useful for testing error states or eliminating unwanted traffic.
Delay Request
Simulate slow networks by delaying requests for a custom duration to mimic latency or throttling.
🔁 Response Actions
Mock / Modify Response
Override real API responses with custom JSON, status codes, or error messages. Ideal for testing frontend components without needing real backend responses.
🌐 URL Actions
URL Redirect
Seamlessly reroute API requests to different endpoints or servers (e.g., from production to staging).
Modify Query Parameters
Add, remove, or change query parameters in outgoing requests dynamically.
👨💻 Built For
Frontend Developers
Easily test UI components against various API states—without waiting for backend readiness.
QA Engineers
Simulate edge cases like timeouts, server errors, and malformed responses without altering production systems.
Dev Teams
Create stable test environments, even when backend services are unstable, incomplete, or unavailable.
🔒 Privacy & Security
MockExpress runs entirely within your browser environment. It does not send or store any data externally. Your mock rules, request logs, and configurations are all stored locally using browser storage (no servers, no tracking, no analytics).
✅ Why Choose Mock Express?
No backend or network setup needed
Intuitive interface with clear rule management
Lightweight and fast—optimized for developer workflows
Works seamlessly across most modern frontend stacks (React, Angular, Vue, etc.)
🧩 Integration & Compatibility
Compatible with most modern frontend frameworks and dev tools
Works with REST APIs and soon GraphQL
Mock Express simplifies API testing and mocking directly in your browser—fast, flexible, and privacy-friendly.
Statistics
Installs
3
history
Category
Rating
0.0 (0 votes)
Last update / version
2025-08-06 / 1.1.2
Listing languages
en-US