Thumbalyzer is a service operated by Rupert AI. By using this site you agree to these terms. If you do not agree, do not use the service.
Thumbalyzer provides a free browser-based tool that resizes images to YouTube thumbnail specifications (1280×720 pixels, under 2 MB) and a guide covering YouTube image requirements. The service is provided free of charge, as-is, with no guarantees of availability or performance.
You retain full ownership of any image you upload and any resized output you download. By uploading an image you confirm that you own it or have the rights to process it. You are solely responsible for the content you upload.
Uploaded images are processed in-memory and immediately discarded. We do not retain, review, or share your images.
You agree not to use Thumbalyzer to:
The service is provided “as is” without warranties of any kind, express or implied. We make no guarantee that resized output will meet YouTube's current requirements, achieve any particular click-through rate, or be free of errors. Guide content is informational only and may not reflect the latest platform changes. Use the tool and guide at your own discretion.
To the fullest extent permitted by applicable law, Rupert AI shall not be liable for any indirect, incidental, special, or consequential damages, including but not limited to loss of revenue, data, or business opportunity, arising from your use of or inability to use Thumbalyzer. This applies regardless of whether we were advised of the possibility of such damages.
The Thumbalyzer name, branding, guide content, and underlying software are owned by Rupert AI and protected by applicable intellectual property law. You may not reproduce or redistribute them without permission. Resized image outputs belong entirely to you.
We reserve the right to rate-limit requests, modify features, or discontinue the service at any time without prior notice or liability. We may suspend or block access for any user who violates these terms or abuses the service.
We may update these terms at any time. The date at the top of the page reflects the most recent revision. Continued use of Thumbalyzer after changes are posted constitutes acceptance of the updated terms.
These terms are governed by the laws of the Republic of Lithuania. Any disputes shall be resolved in the courts of Vilnius, Lithuania.
Questions about these terms: [email protected]