Free grammar reference that finally makes Hungarian's ~20 cases feel systematic.
Details
Daniel Clarke's site explains Hungarian grammar for English speakers as an interlocking system — vowel harmony, the case suffixes, possession, definite versus indefinite conjugation — rather than as a list of rules to memorise, which is exactly what most learners need when Hungarian first looks impossible. It also covers the alphabet and pronunciation, so it works from day one. Completely free with no account. It is a reference, not a course: no exercises, no audio programme, and you will need input material alongside it.