Resize your cover images to the commonly used 1280 × 720 (16:9) YouTube thumbnail format. Fast, client-side resizing with zero image uploads.
For NexoPixel's standard browser-based image tools, processing happens locally in your browser. Your files are not uploaded to NexoPixel servers.
Preconfigured for 1280 × 720 · 16:9 aspect ratio
1280×720 is a commonly recommended 16:9 thumbnail size. Platform requirements may change over time. This resolution matches the widescreen 16:9 aspect ratio commonly used across desktop monitors, TVs, and mobile video feeds.
Formatting a thumbnail to these dimensions helps your video artwork display cleanly across device viewports without unexpected black bars or awkward letterboxing.
Downscaling larger photos (such as a 4K frame grab or DSLR snapshot) to 1280 × 720 yields crisp, sharp thumbnails. However, enlarging an image smaller than 1280 × 720 cannot generate new details that were never recorded.
NexoPixel enforces upscale protection by default to keep your artwork clean, alerting you if upscaling is requested.
If your source image is not 16:9 (such as a square photo or camera RAW 3:2 capture), you can choose 'Fill frame / crop' to center-crop the photo cleanly into a 16:9 frame, or 'Fit entire image' to keep the full original picture intact.
NexoPixel lets you resize and export your thumbnail artwork cleanly to compact JPG, lossless PNG, or modern WebP format right from the same workspace.
Your video mockups and unreleased thumbnail concepts stay private. NexoPixel processes everything on your local device with no cloud uploads or external telemetry.
For NexoPixel's standard browser-based image tools, processing happens locally in your browser. Your files are not uploaded to NexoPixel servers.