YouTube Thumbnail Downloader: Save Any Thumbnail in HD

Every Thumbnail Size YouTube Stores

YouTube does not keep one thumbnail per video but a set of copies, each under its own file name on YouTube’s image server. This downloader asks for every one of them and lists only those that exist, so what you see is exactly what YouTube has for that video.

The 4:3 sizes carry black bars above and below a widescreen picture. That is how YouTube stores them, not something added here; for a clean 16:9 image take maxresdefault.jpg or mqdefault.jpg.

Older videos, uploads made in low resolution and many Shorts never got a 1280 × 720 copy. When YouTube has no HD thumbnail for a video, it is not offered: the largest size listed is the largest that exists. A site that promises a “4K thumbnail” is upscaling one of these files — YouTube does not keep thumbnails in 4K.

Downloading Thumbnails from YouTube Shorts

A Short has two kinds of thumbnail. The usual set in the table is cut to the same 16:9 and 4:3 shapes as any video, so a portrait Short comes out with its top and bottom cropped away or with wide bars at the sides. Next to those, YouTube keeps a vertical cover for most Shorts, oardefault.jpg, at 1080 × 1920 — the full-height image you see in the Shorts shelf. When a Short has one, this Shorts thumbnail downloader lists it first.

Paste the Short’s link the way the Share button gives it, youtube.com/shorts/…, or in any other form: the same video is found either way. To save the Short itself rather than its picture, use the Shorts downloader.

YouTube Thumbnail Size, Dimensions and Aspect Ratio

Making a thumbnail of your own? The numbers YouTube asks for match its largest stored copy: 1280 × 720 pixels, a 16:9 aspect ratio and at least 640 pixels in width. Upload it as a JPG, PNG or GIF. The long-standing limit is 2 MB per image, and YouTube has begun to accept larger files on some channels, so go by the message YouTube Studio shows when you upload.

Downloading a few thumbnails from videos in your niche is a quick way to study what works at this size: how much text fits, how large a face has to be, and how the picture still reads when it is shrunk to the small frame next to a search result.

Save Thumbnails on iPhone, Android and PC

On a computer, Download saves the JPG to your Downloads folder in Chrome, Edge, Firefox or Safari, with no extension to add.

On an iPhone or iPad, Safari asks whether to download the file and keeps it in the Files app. To put the image straight into Photos, tap the thumbnail instead, then touch and hold the full-size picture and choose Save to Photos.

On Android, the JPG goes to Downloads and appears in your gallery. Tapping the thumbnail and then holding the full-size image offers Download image as well.

Can You Use a Downloaded Thumbnail?

A thumbnail is part of the creator’s work and is covered by copyright just like the video. Saving one to look at, to use as a reference for your own design, or to show in a review or a news piece about that video is generally accepted; putting someone else’s thumbnail on your own video or selling it is not. Your own thumbnails are always yours to download — useful when the original file has been lost.