Convert a tweet to WebP

If the tweet is going onto a web page, WebP is the format that helps the page rather than slowing it down: roughly 25 to 35 percent smaller than PNG or JPG at the same perceived quality, and unlike JPEG it keeps a transparent background.

Paste a link above to see the preview here.

The trade-off is reach: WebP is supported by every current browser but some older desktop software and a few social uploaders still reject it. Use it for websites and apps, and fall back to PNG or JPG when you are handing the file to someone else.

Questions

Where can I not use a WebP image?
A few social upload forms and older desktop editors still reject WebP. For those, export the same tweet as PNG or JPG instead.
Does WebP support transparency?
Yes, WebP has an alpha channel, so you can keep a transparent background and still get a much smaller file than PNG.
Is WebP good for SEO?
Indirectly. Smaller images load faster, which improves Largest Contentful Paint, and page speed is a ranking signal.