Which languages is this YouTube video translated into?
Paste any YouTube link to see the video's localized titles and descriptions — the translations YouTube shows viewers in their own language — which languages are still missing, and whether every title fits YouTube's 100-character limit. Free with a Google sign-in, no extension.
See the gap on your own videos, then close it in one click
Most videos are visible in one language. The free VidAI Chrome extension translates a video's title, description, hashtags and subtitles into 100 languages from YouTube Studio and publishes them as official localizations — the ones this checker reads.
Install the free Chrome extension
Free Chrome extension. The free plan includes 250 VidAI credits a month; this tool never charges any.
Audit my whole channel Tags, stats and monetization of this video How to translate a video into 100 languages How YouTube picks the language a viewer sees
How to read the result
How YouTube decides which title a viewer sees
Every YouTube video has one default language and, optionally, a localized title and description per language. YouTube shows the localization whose code matches the viewer's interface language — the language YouTube itself is displayed in, not the viewer's country or browser. When there is no match it shows the default language. So a video localized into Spanish reaches viewers whose YouTube is in Spanish, and nobody else sees anything different.
What “translated” means here
This checker reads the video's metadata localizations: the title and the description, as returned by YouTube's public Data API. It does not read subtitle tracks or dubbed audio — those are separate features with their own settings — and it cannot tell whether a translation is any good, only that one exists. A localized title identical to the original is flagged, because YouTube counts it as a localization while viewers gain nothing.
Why the 100-character limit matters per language
YouTube rejects titles longer than 100 characters, in every language. Translations are usually longer than the source — German, Spanish, French and Portuguese add 10 to 30 percent — so a title that fits in English can fail in a dozen languages. The length column shows each localized title against the limit; the missing-languages section warns when the original is long enough for that to bite.
How to add the missing languages
By hand: YouTube Studio → Subtitles → the video → Add language → type the title and description → Publish, once per language. With VidAI: open the video in Studio, pick the languages (or a preset like the 20 most spoken), click Translate; the title, description, hashtags and subtitles are translated and published as localizations, and regional variants such as Latin-American Spanish or Brazilian Portuguese are added on top at no extra credits. The free plan covers a typical video into about 30 languages a month.
Frequently asked questions
How do I see which languages a YouTube video is translated into?
Paste the video's link above. YouTube's Data API returns the video's default language and every language that has a localized title and description, so the tool lists them all — with each localized title — and names the languages that are missing. Viewers cannot see this list on YouTube itself; only the video's owner sees it, in Studio.
Does YouTube translate titles and descriptions automatically?
No. YouTube can auto-translate captions and, on eligible channels, dub audio, but titles and descriptions are only localized when the creator adds them per language — by hand in Studio or with a tool such as VidAI. A video with no localizations shows its original title to every viewer in the world.
Why do my viewers still see the English title after I added a translation?
YouTube shows a localization only when it matches the viewer's interface language exactly, and falls back to the default language otherwise. A viewer in Brazil with YouTube set to English sees English; a viewer with YouTube in Portuguese sees the Portuguese localization if one exists under the matching code. Check the preview above for the language in question, and make sure the video's default language is set.
Does this tool check subtitles or dubbing?
No. It reads only the title and description localizations. Subtitle tracks and dubbed audio tracks are separate — a video can have Spanish subtitles and no Spanish title, or the other way round. VidAI translates subtitles as well, but this page reports metadata only.
What are the missing languages counted against?
Against VidAI's public catalog of 100 languages, minus the few YouTube does not accept as localizations. The list is the same one the extension can publish in one click, ordered by number of speakers, so the first entries are the largest audiences the video is not reaching.