Mokku

Name: Mokku
Rating: 4.07 (163 reviews)
Author: Mukul Jain

Adds the API mocker MOKKU to Chrome Developer Tools for seamless integration & testing.

As of June 2026, Mokku has 10,000 users and a 4.07/5 rating from 163 reviews in the Developer Tools category.

Mukul Jain Developer Tools★ Featured

Chrome Web Store ↗.crx

Users0%

10.0K

10,000

Rating+1.0%

4.07

163 reviews

Reviews+3.8%

163

Version

2.5.2

Manifest V3

90-day change · In the last 90 days this extension 5 version updates, changed permissions.

History

8 snapshots

Tracking since Apr 1, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 1, 2026	10.0K	4.03	157	2.4.9
Apr 5, 2026	10.0K	4.03	157	2.4.10
Apr 16, 2026	10.0K	4.04	159	2.4.10
Apr 22, 2026	10.0K	4.05	160	2.4.10
Apr 26, 2026	10.0K	4.06	161	2.4.14
May 11, 2026	10.0K	4.06	161	2.4.15
May 23, 2026	10.0K	4.06	161	2.4.17
Jun 21, 2026	10.0K	4.06	162	2.4.17
Now	10.0K	4.07	163	2.5.2

Changelog

Jun 21, 2026

permissions

storage, activeTab, tabs, declarativeNetRequest

storage, activeTab, tabs, declarativeNetRequest, identity

Permissions & access

Permissions: storageactiveTabtabsdeclarativeNetRequestidentity
Host access: <all_urls>

Screenshots

About

🚀 Take Control of Your API Workflows with Mokku
Stop waiting for backend deployments or struggling with unstable staging environments. Mokku is the ultimate developer tool that integrates directly into your Chrome DevTools to let you mock, modify, and manage API responses seamlessly.

Whether you're building a frontend against a non-existent API or testing edge-case error states, Mokku gives you the power of a full mock server right inside your browser.

🛠️ Key Features
1. Powerful API Mocking

Complete Control: Specify JSON bodies, HTTP status codes, time delays (latency), and custom headers.

GraphQL Native: Full support for mocking GraphQL queries and mutations.

Dynamic Responses: Go beyond static files. Write JavaScript functions to return complex, conditional data based on the request.

Dynamic URL Matching: Use patterns like /goals/:goalId (powered by path-to-regexp v8.2.0). URL parameters are passed directly to your response functions.

Pro Editor: Built-in Monaco Editor (the engine behind VSCode) for a premium coding experience.

2. Flexible Header Modification

Modify request headers globally or on a per-URL basis. Perfect for testing auth tokens or custom headers without touching your source code.

3. Effortless Organization & Portability

Projects: Group mocks and headers by project to keep your workspace clutter-free.

Import/Export: Share mocks with your team or backup your setup by exporting project-based configurations.

⚙️ How it Works
Mokku adds a dedicated tab to your Chrome DevTools. You can:

Click-to-Mock: Pick any existing network call from your logs and turn it into a mock with one click.

Start from Scratch: Create custom mocks manually for APIs that don’t exist yet.

Safe Injection: Mokku is non-intrusive. It only injects scripts into localhost by default. For all other domains, it remains inactive until you manually enable it from the panel.

🔒 Privacy First
Zero Data Collection: Mokku does not collect or request any personal information.

Secure Storage: Your mocks are stored safely within your Chrome profile storage.

🔗 Links & Resources
What’s New: https://get.mokku.app/changelog

Stop waiting for the backend. Start building with Mokku.