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ModResponse - Mock and replay API icon

ModResponse Chrome Extension Analysis

Developer & Designer Tools

Store listing title: ModResponse - Mock and replay API

Chrome extension ID: bbjcdpjihbfmkgikdkplcalfebgcjjpm

This extension allows users to stub API responses, reroute requests to local servers, and inject delays or network errors without modifying source code. It targets developers looking to streamline frontend testing against unimplemented or remote APIs.

Developer:ModHeader
Version:1.2.1
Size:454KiB
Last updated:
View developer profile
External:Chrome Web StoreOfficial website

Overview

Installs

20K+

Rating

★ 4.4

30 reviews

Languages

1 locales

Includes English (United States)

Market analysis

Review-backed positioning, friction, and market signals for this Chrome extension.

Backed by review samples

Macro category

Developer & Designer Tools

Pricing friction

Low review signal

Complaint intensity

Moderate review signal

Listing & review signals
Observed signals from store listing text and review samples.

Listing positioning

ModResponse is positioned as a powerful developer tool for intercepting, modifying, and replaying HTTP responses directly in the browser. It emphasizes a no-code, proxy-free workflow that allows developers to simulate edge cases and speed up development cycles.

Inferred product pattern

Utility-driven browser extension leveraging Chrome's debugger API for network request manipulation.

Review-backed pain points

Users struggle with the interface's usability, occasional UI unsyncing, and specific functional gaps like simulating network errors in localhost environments.

Observed feature gaps

Requests for GraphQL operation/mutation support and better URL string handling/trimming.

Tags
API MockingWeb DebuggingHTTP InterceptorFrontend Dev
Target users

- Frontend Developers

- QA Engineers

- Full Stack Developers

Primary use cases

- API mocking

- Local development against production domains

- Simulating network latency

- Testing HTTP error scenarios

Positive themes

- Effective request rerouting

- High utility for frontend testing

- Great alternative to code-based mocking

- Reliable functionality

Negative themes

- Clunky user interface

- Difficulty with network error simulation

- Inconsistent URL handling (white space issues)

- UX confusion regarding activation state

Observed friction

- No payment-related friction identified in current review samples.

Evidence boundary: The evidence is derived from Chrome Web Store metadata and 10 representative user reviews ranging from technical feedback to feature requests. The sample size is limited, and some reviews are non-English, which may lead to translation nuances.
Complaint summaries
Review-backed complaint signals grouped by operational area.

Support

Minor UI/UX frustration reported; no severe support or account-related complaints.

Reliability

Some users report difficulties with specific features like network error simulation and occasional UI sync issues.

Privacy

No privacy complaints, though the extension requires extensive permissions (debugger API) which triggers standard browser-level security banners.

Access & pricing

- No clear monetization signal

- No account requirement observed

- Free plan or free usage claimed

Store listing facts

Listing assets

- Screenshots: 3

- Videos: 0

- Languages: 1

Trust signals

- Privacy policy

- Developer contact

- Official website

Store metadata

- Version: 1.2.1

- Size: 454KiB

- Last updated:

Listing SEO keywords

Search intent keywords
Keyword signals for evaluating how users may discover, compare, or search for this extension category.

Core discovery

mock API responsesChrome extension for developersHTTP request interceptortest frontend with mock data

Comparison

ModHeader alternativeAPI mocking tool

Problem

unimplemented API endpointslow API requestsdebug network errors

Alternative

Postman interceptorCharles ProxyFiddler

Similar extensions

Jump to related discovery paths:

More in developerMore from this developer

Screenshots

ModResponse - Mock and replay API screenshot
ModResponse - Mock and replay API screenshot
ModResponse - Mock and replay API screenshot

Links

Website: modheader.com

Privacy policy: https://modheader.com/privacy

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