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Thumbnail Thief

Preview YouTube thumbnails and optionally split them into named layer assets.

Preview Builder

Paste a YouTube URL or video ID, then decide whether to run the OpenAI layer separation pass before you push anything to Slack.

Separate layers Run a vision pass for naming, then generate isolated PNGs for each recognized element.
  • Person names, map regions, and readable text are used to improve filenames when the model can support them from the image and title context.
  • The original thumbnail is always shown first. Split mode adds isolated PNG reconstructions on plain backgrounds.
  • Longer runs are normal when layer separation is enabled because each extracted asset is a separate image edit call.

Output

Ready.

YouTube thumbnail preview
Nothing loaded yet. The preview will appear here after you fetch a thumbnail.