Categories
A tool belongs here because of the job it does, not because of who sells it. A JavaScript runtime, a desktop debugger and an enterprise LMS can all speak SCORM 2004; grouping them by function is what makes them comparable.
Most directories split e-learning software by buyer — authoring for instructional designers, LMS for administrators — and drop everything else. That leaves the parts developers actually reach for, the runtimes, manifest validators, packagers and command line tools, with nowhere to sit. The categories below cover the whole surface, open source and commercial in the same list.
Each category page opens with a definition of what the tools in it do and where they differ, then lists them with the standards each one supports and where that fact came from. Tools that do more than one job appear in more than one category.
Authoring tools & course frameworks
Where the course gets made — and where its SCORM output is decided.
Converters & migration
Turning what you already have — decks, video, H5P, old packages — into something an LMS accepts.
Packagers, SDKs & libraries
The pieces you build with when the course is an application, not a slide deck.