Terms of service.

Last updated: September 8, 2026. Thumbly provides a utility for retrieving publicly available thumbnail image variants associated with public YouTube videos. By using the site, you agree to use it lawfully, respect platform rules, and respect the intellectual-property rights of creators and rights holders.

You are responsible for confirming that your intended use of a downloaded image is permitted. Thumbly does not grant a license, ownership interest, or permission to republish any third-party thumbnail. Do not use the service to attempt to access private, restricted, or non-public content, interfere with the service, or submit malicious requests.

The service is provided as available without a promise that every public video will have every quality variant. We may change, suspend, or improve features to protect users and keep the service reliable. These terms do not limit rights that cannot be limited under applicable law.