Should Package-lock.json Be Committed

When it comes to version controlling and managing dependencies in a Node.js project, one question that often arises is whether the package-lock.json file should be committed to the project repository. As a software developer myself, I have encountered this dilemma and have delved into the intricacies of this topic.

The Purpose of package-lock.json

The package-lock.json file is automatically generated for any operations where npm modifies either the node_modules tree or package.json. It serves as a manifest of the dependency tree and is used to ensure that the same dependencies are installed across different environments. This file locks the versions of a package’s dependencies in a project, providing a reliable and consistent set of dependencies for all contributors and build environments.

Benefits of Committing package-lock.json

Committing the package-lock.json file to the project repository can provide several benefits. Firstly, it ensures that all developers working on the project have the exact same dependencies. This can prevent unexpected issues due to differences in installed package versions. Furthermore, it simplifies the onboarding process for new team members as they can simply clone the repository and have the project up and running without worrying about dependency mismatches.

Risks and Drawbacks

On the other hand, committing the package-lock.json file can lead to some drawbacks. The file can become quite large, especially in projects with many dependencies, which may bloat the repository size. Additionally, some argue that committing the lock file goes against the idea of separating dependencies from the main codebase. There are concerns that it could lead to merge conflicts and be burdensome to manage, especially in larger teams.

My Personal Stance and Best Practices

After careful consideration and practical experience, I have found that the decision to commit the package-lock.json file depends on the project’s specific needs and the team’s workflow. For smaller projects or when working solo, committing the lock file can be beneficial for ensuring consistency and reducing potential issues. However, in larger projects with multiple contributors, it might be more prudent to include guidelines in the project’s documentation on how to generate the lock file locally and avoid committing it.


Ultimately, the decision of whether to commit the package-lock.json file is not a one-size-fits-all scenario. It requires a thoughtful evaluation of the project’s requirements, team size, and collaboration processes. As with many aspects of software development, there are trade-offs to consider. Whether you choose to commit the lock file or not, maintaining clear communication within the team and documenting the chosen approach is crucial for a smooth development experience.