Understands the video
Uses the title, channel, description, and nearby dialogue to resolve names, terms, and intent.
Public beta · Bring your own API key
VidLingo uses video context to reshape awkward captions into natural, readable translations—without taking control away from you.
Supports the following AI models

Built for watching, not word swapping
VidLingo also cleans the caption structure, preserves timing, and remembers the result so the subtitle experience stays smooth from first click to repeat viewing.
Uses the title, channel, description, and nearby dialogue to resolve names, terms, and intent.
Turns overlapping auto-captions and fragments into natural subtitle units before translation.
Derives final timing from cleaned source captions instead of asking the AI to invent timestamps.
Email sign-in keeps API settings and subtitle history available across your VidLingo sessions.
Three steps
Sign in, choose a supported AI provider, paste your API key, and select a model.
VidLingo detects available captions and prefers a manually uploaded track when one exists.
Start translation with one click. Completed subtitles load over the YouTube player and stay in your history.
Your key. Your model. Your bill.
The public beta only translates with an API key you provide. Your provider charges your account directly according to its own pricing.
Questions, answered plainly
Yes. During the public beta, VidLingo only supports personal API keys. You choose the provider and model, and your provider bills you directly.
Gemini, DeepSeek, OpenAI, Claude, Qwen, and Xiaomi MiMo are currently supported.
After you sign in and save it, the key is encrypted on the VidLingo backend. It is not displayed again in the extension and is used to run translations with your selected provider.
The beta requires an available YouTube caption track. Videos without captions and audio transcription are not supported yet.
VidLingo currently offers 16 target languages in the extension, including English, Chinese, Japanese, Korean, Spanish, French, and German.
Public beta
Install VidLingo, connect your preferred AI provider, and give one YouTube video a better subtitle track.
Add to Chrome