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The output of the SPDX project is three-fold:

A specification for Software Bill of Materials (SBOM) format

See Specifications

A list of standard licenses with details and complementary guidelines for matching and expressing licensing

See License List

Open source tooling and libraries to help organizations implement the specifications and licenses

See Tools

Additional resources

Quick Start Guides

Resources to get started with various tooling ecosystems

Go to Guides

SPDX Usage Examples

Demonstrations of SPDX for various scenarios and use cases

See Examples