Thumbnail Downloader is an online tool, with the help of which you can download Video Thumbnail in Different Sizes and Qualities.

THIS APP DOES NOT DOWNLOAD THE VIDEO. THIS DOWNLOAD THE VIDEO PREVIEW OR THUMBNAIL OF THE VIDEO.

How to use:
We give two options for the download video thumbnails. One by search video in-app then downloads another share the video link through the app.
I. Download by the app
1) Search for the video in the built-in search feature.
2) Click Send Button.
3) Click "Download Thumbnail Button" & You're done.
Contact Us:
If you encounter any problems or if you have any suggestions/opinions to make our app better. Please feel free to contact us.

Get free thumbnail images of any videos in Full HD(1080), HD (720), SD, and also in small size. Its currently supported formats: (HD, HQ, 1080p, 4K) videos

Now paste that URL into the input box, the moment you paste that link it's automatically going to generate the different sizes of thumbnails for you. Now click on the thumbnail download button and it's going to automatically download in your system. If you are using an Android phone then you have to save that images.

Are reusing thumbnails are SEO-friendly?

Nope, it's not, in the short answer it's not SEO friendly because almost all thumbnails that are on are indexed by Google. So which one is unique and which one is duplicate Google know it. So it's not SEO-friendly as you know. But you can do some stuff on that thumbnail I mean getting some unique effects using photoshop or any other software that can make your thumbnail unique again so that can be reused and make that SEO friendly again.