Fetch YouTube Channel Banner & Avatar URLs (YouTubeThumb) in n8n

Fetch YouTube channel banner & avatar URLs in n8n—instantly

This n8n workflow looks up a public YouTube channel (handle, channel link, or video watch link) and retrieves the available banner and profile image URLs from YouTubeThumb.com—optionally downloading the largest banner as a JPG.

What this workflow does

Designed for quick, reliable enrichment of YouTube metadata, the workflow:

• Runs manually (click Test workflow) and sets the target YouTube URL or @handle.
• Calls the YouTubeThumb.com channel-images endpoint to retrieve channel banner and avatar image options.
• Checks whether the lookup succeeded and returns an error message if it fails.
• Selects the largest banner and largest avatar by image area, while also outputting the full lists of available banners and avatars.
• If a banner URL is available, downloads the largest banner JPG via YouTubeThumb.com’s channel-image-file proxy. If the channel has no header art, the download step is intentionally skipped.

Use cases

• Populate CRM or internal databases with the correct YouTube channel banner and avatar URLs.
• Build a dashboard in n8n that enriches creators/brands with up-to-date channel visuals.
• Feed channel artwork into your SaaS UI by selecting the highest-resolution images automatically.
• Run a lightweight validation step for YouTube links before storing them or using them in downstream automation.

Technical details

• Nodes used: Manual Trigger, Set, If, Code, Sticky Note, HTTP Request.
• External service: YouTubeThumb.com (no API key or login required for the lookup).
• Requires outbound HTTPS access to youtubethumb.com.

Set your channel input in the Set YouTube URL node, run the workflow, and review the Code node output for the banner/avatar URL lists (and the downloaded JPG when available).