NoaLingua for Chrome
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NoaLingua for Vietnamese — a language learning extension

What actually works in Vietnamese, capability by capability

Vietnamese is one of the 28 languages NoaLingua offers, and 5 of its ten capability axes are verified from the extension's own registries. This page lists what exists, what is documented as absent, and the specific things about Vietnamese that do not apply to any other language.

Tiếng Việt

BCP-47 vi · latin script

What NoaLingua supports in Vietnamese, capability by capability

Capability State Detail
Chrome on-device translation per pair Not documented Varies by pair; Chrome decides
YouTube caption translation Not documented YouTube covers 156 languages; the list is not published per language
Cloud translation (MyMemory) per pair Not documented Opt-in, quota-limited, and the only source that sends sentence text off your device.
Offline word dictionary per pair Not documented FreeDict/WikDict coverage is per pair and not enumerated
Grammar tables (UniMorph) No No UniMorph dataset exists. Vietnamese is an analytic language — there is genuinely nothing to conjugate or decline.
Definitions & IPA (Wiktionary / kaikki) No No kaikki dictionary exists for this language — probed and returned 404
Example sentences (Tatoeba) per pair Yes Real bilingual sentences, searched locally once downloaded.
Speech recognition (Chrome pack) Not documented Chrome owns this pack; availability is Chrome's, not ours
Uncommon-word highlighting No No bundled list, so uncommon-word underlining does not run
Punctuation for captions without it No Not among the model's 47 languages

Specific to Vietnamese

Things that are only true of Vietnamese in NoaLingua

  • Vietnamese has neither a UniMorph nor a kaikki pack. The UniMorph absence is honest rather than a gap — Vietnamese is analytic, so there is nothing to conjugate — but the missing dictionary means definitions come from the online sources only.
  • Vietnamese is one of six supported languages the punctuation model does not cover.
  • Example sentences from Tatoeba are available, so the word card still carries real bilingual examples.
  • This is the thinnest offline coverage of any supported language: examples work offline, definitions and grammar do not.
Setting up for Vietnamese Choose Vietnamese as the language you are learning in the extension popup or Settings → Languages. Packs begin downloading immediately and in the background — leave the browser open for 15 to 30 minutes and check the corner of the screen. When it goes quiet, everything is local. The full first-run guide →

Common questions about NoaLingua

Does NoaLingua work for Vietnamese?

Vietnamese is one of the 28 languages in the learning and translation selectors, and 5 of its ten capability axes are verified. The table on this page shows exactly which ones — including the ones that are documented as absent.

Can I get grammar tables for Vietnamese?

No. No UniMorph dataset exists. Vietnamese is an analytic language — there is genuinely nothing to conjugate or decline. Everything else — definitions where available, examples, saving and review — works normally.

Does Vietnamese work offline?

Partly. Example sentences work offline once downloaded, but there is no offline dictionary for Vietnamese — definitions come from the online sources or not at all.

What does “not documented” mean in the table?

That we have not verified it ourselves, so we will not claim it either way. It is not the same as “no”. Several of those columns depend on data Chrome owns and does not publish per language.

Other languages NoaLingua supports

Start Vietnamese on the next video you open.

Free, with every feature. No account, nothing to cancel, and your deck stays on your machine.

Add to Chrome — Free Add to Chrome Opens the Chrome Web Store listing NoaLingua — beyond dual subs: video, web, PDF — free, no account, Chrome 138 or newer.

What happens after you install Pricing What it cannot do