Resize and optimize YouTube thumbnails to official 1280x720 pixels and under the mandatory 2MB limit. Crisp text and vibrant graphics across mobile and desktop.
Drop your file here, paste from clipboard (Ctrl+V), or browse
Supports JPG, PNG, WebP, AVIF, HEIC, GIF • 100% Client-Side Privacy Guaranteed
Import your video thumbnail artwork.
Exact YouTube creator specifications applied.
Guaranteed crisp quality under 2MB.
Instant upload to your video settings.
Thumbnails are the #1 driver of impressions and click-through rates on YouTube. A crisp 1280x720 resolution guarantees that facial expressions and bold title text remain eye-catching in recommendation feeds.
Unlike other online image converters that transfer your confidential documents, family pictures, and signatures to remote cloud servers, this toolkit runs WebAssembly and HTML5 Canvas algorithms entirely inside your browser sandbox. Your files never leave your device.