SPDX Cheat Sheet

SPDX Specification

URL	Description
License List	The list of License codes
Exception List	The list of License Exception codes
IDs	Short-form identifiers guidance
Expressions	SPDX Expressions spec guidance
Tutorial	Short SPDX Tutorial

Source Headers

SPDX-License-Identifier: MIT

Expressions

OR expressions

(LGPL-2.1 OR MIT OR BSD-3-Clause)

AND expressions

(LGPL-2.1 AND MIT AND BSD-2-Clause)

WITH expressions

(GPL-2.0+ WITH Bison-exception-2.2)

Or Later expressions

(LGPL-2.1+)

Order

+
WITH
AND
OR

Parsers

Type	Repo	Language
Document	spdx/tools-golang	GoLang
Expression	kyoh86/go-spdx	GoLang
Expression	kemitchell/spdx.js	JavaScript
Expression	jslicense/spdx-expression-parse.js	JavaScript
Expression	samcv/SPDX-Parser	Perl6
Document	spdx/tools-python	Python
Document	ah450/spdx-tools-python	Python
Expression	nexB/license-expression	Python
Expression	heremaps/oss-review-toolkit	Kotlin (Java)

Other Tools

Type	Repo	Language
Autocorrector	jslicense/spdx-correct.js	JavaScript
Autocorrector	librariesio/spdx	Ruby
Validator	rust-lang-nursery/license-exprs	Rust
Validator	composer/spdx-licenses	PHP
Compatibility Validator	librariesio/license-compatibility	Ruby