Download videos from 1800+ platforms and generate complete resource packages with AI summaries and transcripts.

Video Summarizer

Download videos from YouTube, Bilibili, TikTok, and 1800+ sites, extract subtitles, transcribe with Whisper, and generate AI-powered structured summaries.

Video AnalysisKnowledge WorkflowData Workflow

53 Stars5 ForksUpdated Aug 30, 2026View source

Overview Capabilities Quick start

Skill impact

A focused workflow with measurable value.

Stars

Forks

Updated

Aug 30, 2026

About Video Summarizer

Download videos from any platform and generate a complete resource package including: original video file (mp4), audio file (mp3), subtitle file (with timestamps, vtt/srt format), summary file (summary.md).

What Video Summarizer Can Help You Do

This skill downloads media files from supported platforms, extracts or transcribes audio content into subtitles and text transcripts, and produces structured AI summaries with timestamps.

Download videos and extract audio from over 1800 platforms including YouTube, Bilibili, and TikTok

Extract manual or auto-generated subtitles with timestamps

Perform parallel speech-to-text transcription using faster-whisper with silence-based audio splitting

Generate structured AI summaries containing key points, quotes, and timestamps

Common use cases

Summarizing long educational lectures and online tutorials

Archiving social media clips and creator content with transcripts

Transcribing foreign-language media for research and study

Generating written documentation and notes from video recordings

Quick start

Install command

npx skills add liang121/video-summarizer@video-summarizer