Product facts
About ThumTool
ThumTool is a free web tool that finds the public thumbnail renditions YouTube exposes for a video. Paste a supported YouTube URL or an 11-character video ID, review the available sizes, and download the rendition you need.
youtu.be links, embeds, Shorts, live links, and bare video IDs. It requires no account.
What the tool returns
maxresdefault— normally 1280 x 720 when YouTube provides itsddefault— 640 x 480hqdefault— 480 x 360mqdefault— 320 x 180default— 120 x 90
Those are public image renditions for an existing video. They are separate from YouTube's current custom-thumbnail upload recommendation, which is explained in our thumbnail size guide.
Limits and responsible use
- Some videos do not have every rendition, especially
maxresdefault. - ThumTool does not download video, generate an image from an arbitrary timestamp, or bypass access controls.
- A publicly accessible thumbnail can still be protected by copyright. Download and reuse only content you own or have permission to use.
- Availability depends on YouTube's image service.
Operator and privacy
ThumTool is operated by SASU Dynamic Foundries, registered in Paris under RCS Paris 102 801 206. The service is hosted by OVH in France. Your browser sends the submitted URL or video ID to ThumTool's server, which retrieves images from YouTube and returns previews or downloads. No account is required; optional Google Analytics loads only after consent. See the privacy policy for the complete data-handling description.