YouTube
Free PNG images in the category “YouTube”: 3 files with transparent background, no sign-up.
Bright, simple graphics that sit well next to video content: a glossy red heart with a soft shadow, a grinning cartoon sun in a striped hat, a rendered sheep with a cream fleece and a brass compass under glass.
Filters
Compass, chinese Style, orange, technic PNG
Smiley Animation Emoticon, summer, food PNG
Instagram sharing Social network YouTube PNG
A brand category without the brand
In Logos & Brands this category is named after a video platform, but the site does not host or attribute trademarks. What collects here are generic graphics that creators use around videos: reaction icons, cheerful characters and props.
Thumbnail material
The glossy heart works as a like or favourite symbol; the sun in a hat and the fleecy sheep are characters for a kids channel thumbnail. The compass suits an adventure or travel intro.
Big and bold
Video thumbnails are small and busy, so pick graphics with strong outlines and saturated colour. Check the file against a dark and a light background, since thumbnails use both.