Bilibili is one of the largest video platforms in the world — the go-to place in China for courses, programming and tech talks, science explainers, gaming tutorials, and long-form commentary. The problem for everyone outside China is simple: almost all of it is in Chinese, and most translation tools don't support Bilibili at all.

Vaivox does. You paste a Bilibili link and get the full video dubbed into your language with a natural AI voice, synced to the original — so you can actually watch and understand it instead of guessing from auto-captions.

Why Bilibili content is worth the trouble

A huge amount of high-quality technical and educational material lives on Bilibili and never makes it to YouTube. If you're learning to code, following AI research, studying, or just curious about what Chinese creators are teaching, Bilibili is a goldmine — once you remove the language barrier.

  • Programming & AI — deep tutorials and walkthroughs you won't find elsewhere
  • University-level lectures and study content
  • Product reviews and tech news ahead of the Western cycle
  • Gaming, hobbies and how-to guides with huge, detailed communities

How to translate a Bilibili video with Vaivox

It takes three steps and about a minute of your attention:

  • Copy the Bilibili video URL (from bilibili.com or a b23.tv short link)
  • Paste it into Vaivox and pick your language
  • Press start — Vaivox transcribes the Chinese, translates it, generates a natural dubbed voice, and gives you back the video with the new voice inside it

You get a real dubbed MP4: play, pause and seek work normally, and you can download it. No subtitles to read, no switching between windows.

Why almost no other tool does this

Most dubbing and translation tools are built around YouTube. Bilibili sits behind a different platform and is often geo-restricted outside China, so competitors simply skip it. Vaivox is one of the very few tools that can dub Bilibili videos at all — which, if you rely on Chinese content, makes it close to essential.

It's the same idea behind everything Vaivox does: you shouldn't have to speak a language to understand a video in it. Bilibili was just the hardest place to prove it.