Coverage Settings

Enable Coverage Collection Enforce Thresholds

Module Settings

Path Aliases

Enter alias mappings, one per line (e.g. @/components => ./src/components)

File Extensions

Comma-separated list of file extensions

Test Options

Verbose Output Clear Mocks Between Tests Restore Mocks Between Tests Detect Open Handles Hide Stack Traces Bail After First Failure

Max Workers

Test Timeout (ms)

Setup Files

Add Setup Files

Generated Config

Install Dependencies

Run this command to install the required packages:

About Jest Config Generator

Jest is a delightful JavaScript testing framework with a focus on simplicity. It works out of the box for most JavaScript projects and provides a powerful API for mocking, spying, and asserting. This generator creates ready-to-use Jest configuration files tailored to your project type, saving you time and reducing setup friction. All generation happens client-side — no data is sent to any server.

Features

7 project presets: Vanilla JS, TypeScript, React, Vue, Node.js, Next.js, React Native
Export as jest.config.js, .ts, .mjs, .json, or package.json field
Customizable coverage collection with threshold enforcement
Path alias resolution for monorepos and complex projects
Transform configuration for Babel, TypeScript, Vue, and Svelte
Test environment selection (jsdom vs node)
Setup files and global test configuration
Install command generator with exact dependencies
100% client-side — no data leaves your browser

Jest Config Generator

Project Preset

Config Format

Test Environment