What is Thumbnail?

Thumbnail is a reduced size version of image that represents a large one. Thumbnail is a smaller version of a much large image that is used to help conserve screen space.

If we understand in simple words, the poster image that is placed in the cover of video, large image or album is called a Thumbnail. Compressed images of a small size that represent a large image or album are called Thumbnail.

What is Thumbnail?

The term thumbnail is used for images that represent an album or original image. If we talk about video thumbnails, its meaning will be slightly different in the context of video.

A cover image, intended to represent a video, is called a video thumbnail.

This means that instead of a scene or part shown in the video, represent the entire video, and provide accurate information about the content contained within the video.

Similarly, when we search a video on YouTube, it appears as a thumbnail as a cover image. In this, we can apply a scene for thumbnail from the video itself.

Or you can also design a separate image as a custom thumbnail. Designing an attractive thumbnails is must by video creators.

Thumbnails are reduced size versions of pictures or videos, used to help in recognizing and organizing them, serving the same role for images as a normal text index does for words. - Wikipedia

A thumbnail is an image with reduced  file size that is used as a placeholder for full-sized multimedia content. - Ionos.com

Thumbnails serve the same role for images as a normal text index does for words. If a viewer is interested, they can click on the thumbnail to expand the image and see the full picture.


Importance of Thumbnails?

It is very important for Search Engine Optimization to please thumbnails on YouTube videos. Thumbnails are such an important think that the user is forced to click on the video to watch.

Come, let us know what are the importance of thumbnails can be :-

  • A attractive thumbnail forces the user to watch the video.
  • SEO of video improves by applying thumbnail.
  • The illiterate person can also understand the content of the video by looking at the thumbnail. And they can open the video without reading the title.
  • A good thumbnail also increases the CTR of the video.