Case Studies

YouTube to Social Media Auto-Generation System

Input video URL to auto-generate clips, subtitles, captions for all platforms and auto-post.

VIDEO AIMULTI-PLATFORMAUTO-SCHEDULINGCONTENT REPURPOSINGSHORT-FORM

The Problem

Weekly YouTube uploads require 30+ hours/month to repurpose for SNS. Each platform needs custom formats, aspect ratios, captions.

The Solution

YouTube URL → auto-fetch video info via InnerTube API. Auto-split into platform-specific clips (TikTok 9:16/60s, Reels 9:16/90s, X 16:9/140s). Auto-generate subtitles and captions per platform via Claude. Auto-create thumbnails, captions, hashtags. Batch post at optimal times.

Results

SNS Work Cut

30 hours/month → 1 hour (97% reduction)

Posting Frequency

1/week → 3-4/day

Total Reach

3x increase (short-form viral effect)

Engagement Rate

1.2% → 3.8%

Technologies Used

YouTube InnerTube APITikTok APIInstagram Graph APIX APIMoviePyFFmpegClaude APICloud SchedulerBackground Jobs

Implementation Period

3週間

Target Industries

YouTube Creators / Corporate Marketing

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