Bilibili & YouTube Watcher

Fetch and read transcripts from YouTube and Bilibili videos. Use when you need to summarize a video, answer questions about its content, or extract informati...

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Last updated: April 23, 2026

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Video Watcher

Fetch transcripts from YouTube and Bilibili videos to enable summarization, QA, and content extraction.

Supported Platforms

✅ YouTube (youtube.com, youtu.be)
✅ Bilibili (bilibili.com, b23.tv)

Usage

Get Transcript (Auto-detect Platform)

python3 {baseDir}/scripts/get_transcript.py "VIDEO_URL"

Specify Language

python3 {baseDir}/scripts/get_transcript.py "VIDEO_URL" --lang zh-CN

Examples

YouTube Video

python3 {baseDir}/scripts/get_transcript.py "https://www.youtube.com/watch?v=dQw4w9WgXcQ"

Bilibili Video

python3 {baseDir}/scripts/get_transcript.py "https://www.bilibili.com/video/BV1xx411c7mD"

With Custom Language

# Get English subtitles for a Bilibili video
python3 {baseDir}/scripts/get_transcript.py "https://bilibili.com/video/..." --lang en
Get Chinese subtitles for a YouTube video

python3 {baseDir}/scripts/get_transcript.py "https://youtube.com/watch?v=..." --lang zh-CN

Default Languages

Platform	Default Language
YouTube	`en` (English)
Bilibili	`zh-CN` (Chinese)

Common Language Codes

```
en
```
- English
```
zh-CN
```
- Simplified Chinese (简体中文)
```
zh-TW
```
- Traditional Chinese (繁體中文)
```
ja
```
- Japanese
```
ko
```
- Korean
```
es
```
- Spanish
```
fr
```
- French
```
de
```
- German

Notes

Requires
```
yt-dlp
```
to be installed and available in PATH
Works with videos that have closed captions (CC) or auto-generated subtitles
Automatically detects platform from URL
If no subtitles available, the script will fail with an error message
yt-dlp natively supports both YouTube and Bilibili

Bilibili & YouTube Watcher

AI Skill Market Insights

Quick Start

Manual Installation

TEAR & SHARE

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Video Watcher

Supported Platforms

Usage

Get Transcript (Auto-detect Platform)

Specify Language

Examples

YouTube Video

Bilibili Video

With Custom Language

Get Chinese subtitles for a YouTube video

Default Languages

Common Language Codes

Notes

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