Important: This documentation covers Yarn 2.
For 1.x docs, see classic.yarnpkg.com.
Yarn
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yarn info

See information related to packages.

Usage

$> yarn info ...

Examples

Show information about Lodash :

yarn info lodash

Options

Definition
Description
-A,--all Print versions of a package from the whole project
-X,--extra #0 An array of requests of extra data provided by plugins
--cache Print information about the cache entry of a package (path, size, checksum)
--dependents Print all dependents for each matching package
--manifest Print data obtained by looking at the package archive (license, homepage, ...)
--virtuals Print each instance of the virtual packages
--json Format the output as an NDJSON stream

Details

This command prints various information related to the specified packages, accepting glob patterns.

By default, if the locator reference is missing, Yarn will default to print the information about all versions of the package in the active workspace dependency tree. To instead print all versions of the package in the whole project, use the -A,--all flag.

Some fields will be hidden by default in order to keep the output readable, but can be selectively displayed by using additional options (--dependents, --manifest, --virtuals, ...) described in the option descriptions.

Note that this command will only print the information directly related to the selected packages - if you wish to know why the package is there in the first place, use yarn why which will do just that (it also provides a -R,--recursive flag that may be of some help).