65 free university lesson PDFs, from greetings through noun classes to the subjunctive.
Details
The University of Kansas African Studies department publishes its whole Kiswahili sequence as free downloadable lesson PDFs — 65 of them, running from classroom greetings and noun classes up to passives, relatives and verb extensions. It is the closest thing to a free structured syllabus for Swahili, and the grammar sequencing is properly thought out. There is no audio and no interactivity: these are course handouts, so pair them with a listening source.