cargo-metadata

Output workspace and dependency metadata as JSON

TLDR

Output project metadata

$ cargo metadata

Output with format version

$ cargo metadata --format-version 1

Without dependencies

$ cargo metadata --no-deps

Filter to specific features

$ cargo metadata --features [feature1,feature2]

Pretty print JSON

$ cargo metadata --format-version 1 | jq .

SYNOPSIS

cargo metadata [options]

DESCRIPTION

cargo metadata outputs JSON to stdout containing information about workspace members, resolved dependencies, and build configuration. Useful for tooling and IDE integration.

PARAMETERS

--format-version version

Schema version (use 1 for stability)

--no-deps

Skip dependency resolution (faster, workspace only)

--features features

Enable specified features

--all-features

Enable all features

--no-default-features

Disable default features

--filter-platform triple

Filter to specified platform

--manifest-path path

Path to Cargo.toml

-v, --verbose

Verbose output

-q, --quiet

Suppress log messages

OUTPUT FIELDS

packages

Array of all packages and dependencies

workspace_members

Package IDs of workspace members

workspace_root

Absolute path to workspace root

target_directory

Path to build output directory

resolve

Dependency resolution graph

version

Schema version number

CAVEATS

Output format may change between Cargo versions. Always use --format-version for scripts. The cargo_metadata crate provides Rust parsing.