How to install packages with yarn in Node.js

Thursday, October 9, 2025

#nodejs #yarn #packages #dependency-management

Installing packages with yarn provides faster, more reliable dependency management with deterministic installs and better caching than npm. As the creator of CoreUI, a widely used open-source UI library, I’ve used yarn for thousands of Node.js projects to manage dependencies reliably. From my expertise, the most effective approach is using yarn add with proper dependency categorization. This method ensures consistent installations across environments with automatic lockfile generation.

Use yarn add to install packages with automatic dependency resolution and lockfile creation.

# Install production packages
yarn add express lodash

# Install development packages
yarn add --dev eslint prettier

# Install all dependencies from package.json
yarn install

Yarn automatically creates a yarn.lock file that ensures deterministic installations across all environments. Use --dev flag for development-only dependencies. The yarn.lock file should always be committed to version control for consistent installations.

Best Practice Note:

This is the same yarn approach we use in CoreUI Node.js projects for reliable dependency management. Always commit yarn.lock files and organize dependencies by type for better project maintenance.

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About the Author

Łukasz Holeczek is the founder of CoreUI and the lead developer of its JavaScript, React, and Vue products. He builds open-source UI tools that help developers create better, more accessible user interfaces — CoreUI is used across tens of thousands of projects on GitHub and has been downloaded more than 58 million times.

With expertise in TypeScript, JavaScript, Node.js, and modern frameworks like React, Vue, and Next.js, Łukasz combines technical depth with a focus on UI/UX design and accessibility. CoreUI’s mission is to provide developers with tools that enhance productivity while adhering to accessibility standards.

Łukasz shares his knowledge through technical software development articles on the CoreUI blog. He also advises enterprise companies on building solutions from start to finish, and through CoreUI he offers professional services, technical support, and open-core products that help developers and businesses achieve their goals.

Learn more about CoreUI’s solutions and see how your business can benefit from working with us.

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