HL7 IG Publisher is a Java-based tool used to compile FHIR implementation guides (IGs) for publication online. It is a command-line tool that requires Java and other dependencies to run. The tool is available for download from the HL7 FHIR IG Publisher GitHub repository.
To make it easier to generate implementation guides, I've created this online tool that allows you to compile IGs online without having to install the IG Publisher and its dependencies. You can use this tool to generate IGs for your projects or for testing purposes.