Skip to content
Switch branches/tags

Name already in use

A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
Go to file
Cannot retrieve contributors at this time


The Software Package Data Exchange (SPDX) specification is a standard format for communicating the components, licenses and copyrights associated with a software package.

These tools are published by the SPDX Workgroup see

Code quality badges

| Bugs | Security Rating | Maintainability Rating | Technical Debt |

Getting Starting

The SPDX Tool binaries can be downloaded from the releases page under the respective release. The package is also available in Maven Central (organization org.spdx, artifact tools-java).

See the Syntax section below for the commands available.

If you are a developer, there are examples in the examples folder.


See the file for information on making contributions to the SPDX tools.


Report any security related issues by sending an email to

Non-security related issues should be added to the SPDX tools issues list


The command line interface of the spdx tools can be used like this:

java -jar tools-java-1.1.5-jar-with-dependencies.jar <function> <parameters> 

SPDX format converters

The following converter tools support spdx format:

  • Tag
  • XLSX Spreadsheet
  • XLS Spreadsheet
  • JSON
  • XML
  • YAML

Example to convert a SPDX file from tag to rdf format:

java -jar tools-java-1.1.5-jar-with-dependencies.jar Convert ../testResources/SPDXTagExample-v2.2.spdx TagToRDF.rdf

The file formats can optionally be provided as the 3rd and 4th parameter for the input and output formats respectively. An optional 5th option excludeLicenseDetails will not copy the listed license properties to the output file. The following example will copy a JSON format to an RDF Turtle format without including the listed license properties:

java -jar tools-java-1.1.5-jar-with-dependencies.jar Convert ../testResources/SPDXTagExample-v2.2.spdx TagToRDF.ttl TAG RDFTTL excludeLicenseDetails

Compare utilities

The following tools can be used to compare one or more SPDX documents:

  • CompareMultipleSpdxDocs with files

    Example to compare multiple SPDX files provided in rdf format and provide a spreadsheet with the results:

    java -jar tools-java-1.1.5-jar-with-dependencies.jar CompareDocs output.xlsx doc1 doc2 ... docN
  • CompareMultipleSpdxDocs with directory

    Example to compare all SPDX documents in a directory "/home/me/spdxdocs" and provide a spreadsheet with the results:

    java -jar tools-java-1.1.5-jar-with-dependencies.jar CompareDocs output.xlsx /home/me/spdxdocs

SPDX Viewer

The following tool can be used to "Pretty Print" an SPDX document.

  • SPDXViewer

Sample usage:

java -jar tools-java-1.1.5-jar-with-dependencies.jar SPDXViewer ../testResources/SPDXRdfExample-v2.2.spdx.rdf 


The following tool can be used to verify an SPDX document:

  • Verify

Sample usage:

java -jar tools-java-1.1.5-jar-with-dependencies.jar Verify ../testResources/SPDXRdfExample-v2.2.spdx.rdf


The following tool can be used to generate an SPDX verification code from a directory of source files:

  • GenerateVerificationCode sourceDirectory

Sample usage:

    java -jar tools-java-1.1.5-jar-with-dependencies.jar GenerateVerificationCode sourceDirectory [ignoredFilesRegex]

SPDX Validation Tool

The SPDX Workgroup provides an online interface to validate, compare, and convert SPDX documents in addition to the command line options above. The SPDX Validation Tool is an all-in-one portal to upload and parse SPDX documents for validation, comparison and conversion and search the SPDX license list.


A complete SPDX file is available including dependencies is available in the bintray and Maven repos.

SPDX-License-Identifier:	Apache-2.0
PackageLicenseDeclared:	Apache-2.0



You need Apache Maven to build the project:

mvn clean install

Update for new properties or classes

To update Spdx-Tools-Library, the following is a very brief checklist:

  1. Update the properties files in the org.spdx.tag package for any new tag values
  2. Update the for any new or changed tag values. This will implement both the rdfToTag and the SPDXViewer applications.
  3. Update the org.spdx.tag.BuildDocument to implement changes for the TagToRdf application
  4. Update the HTML template (resources/htmlTemplate/SpdxHTMLTemplate.html) and contexts in org.spdx.html to implement changes for the SpdxToHtml application
  5. Update the related sheets and file in the package org.spdx.spreadsheet
  6. Update the sheets for SPDX compare utility