SEAsite Vietnamese (Northern Illinois University)
Free academic site: 20 spoken-Vietnamese lessons and an interactive sound guide.
What it actually is
NIU's Southeast Asian studies archive includes twenty lessons in spoken Vietnamese, an interactive pronunciation guide covering every consonant, vowel and tone with audio, flashcards, matching exercises and culture pages. The pronunciation guide in particular is still one of the clearest free explanations of the Vietnamese sound system. The site is visibly an early-2000s artefact — frames, font notes, occasional broken media — so use it for the audio reference, not as a modern course.
What it covers
- Pronunciation
- Listening
- Vocabulary
- Reading