This n8n workflow streamlines the process of updating YouTube video descriptions by automatically inserting specified text between designated lines across multiple videos. Designed for content creators and marketers, it ensures consistency and saves time when managing video descriptions.

The workflow begins with a manual trigger, allowing users to initiate the process on demand. It initially fetches a list of recent YouTube videos (up to three, sorted by date). For each video, the workflow retrieves the detailed video information, including the current description.

Using the ‘Set String to Insert’ node, users define three key text strings: one that marks the line before the insertion point, one for the new content to insert, and one that indicates the line after which the insertion should occur. These can be customized based on the description structure.

A custom code node then processes each video’s description: it splits the description into lines, finds the specified lines, and inserts the new text between them. After updating the description, the workflow updates the video on YouTube with the new description, maintaining existing tags, category, and other metadata.

This automation is especially useful for YouTubers who need to periodically update video descriptions with new links, announcements, or information without manual editing of each video individually. It can be easily adapted for bulk updates, channel management, or promotional campaigns.