Thumbnail

If you want to thumbnail you i,ages or your website you can choice this generator, you can compare this website for your need in thumbnail,fo your purpose

Some of  free online thumbnails generators:

Bulga Webthumbs

Bluga.net WebThumb provides a white-label web service API for generating free web thumbnails online in various sizes.

Thumbalizr

Just Enter your target URL to create your thumbnail images in various sizes ranging from 150px to 1280px wide. .

Snapcasa

 sizes 100×75 to 280×210.

ShrinkTheWeb

. Default sizes include 75×56, 90×68, 100×75, 120×90, 200×150, 320×240.

Websnapr

Enter URL and size [micro (90x70) and small (202x152)] then click “Capture!”.