How to create thumbnail for my video?
Having a great thumbnail is just as important as having a great video, as it's the first thing your subscribers will see about your videos. So before learning how to create a thumbnail, make sure your youtube account is verified. If it isn't, you will not be able to create custom thumbnails.
Here are 3 tips on How to Make a YouTube Thumbnail:
1) Resolution: HD Video Sizing You can technically upload a thumbnail with any resolution. However, you could have issues with its appearance on YouTube. In order to prevent cropping or stretching you should make sure your thumbnail is size is 1920 x 1080 or a 16:9 ratio.
2) Consider Different Sized Devices A lot of people aren’t aware of this, but you should consider all the devices youtubers watch content. These devices range from desktop, laptop, tablet, or cell phone. Which all have drastically different screen sizes. So you need to make your thumbnail look great when viewed on all devices. Since most YouTubers are watching videos on their phone, make sure it looks great when its small, so that may mean making the text a little bit bigger or not overcrowding it with too many elements. A good way to test if your thumbnail looks good smaller is to zoom out, or look at your thumbnail from a feet away!
3) Make it stand out and be original Use bold colors, or unique designs to make your thumbnails stand out. Here are a few examples of different styles we have on various Filmora channels You dont necessarily need to use text in your thumbnail.
And here is a video tutorial you can check it out.