What is the best format for images on the web in 2019?

Question

Images

Good afternoon.
We have photo hosting. Initially, I thought about converting photos when uploading to webp , but I came across articles that the format has become obsolete. Then what, in fact, to do? Continue using webp by linking the polyfill (webpjs.appspot.com) or choose jpeg ? Or are there better options?

Answer 1

UPDATE most likely in 2019 the best format for images on the web will be .AVIF *
For photo hosting, conversion speed, compression savings and processor load are important. For these parameters and come up with all sorts of formats. Many seemingly wonderful formats have no browser support at all.
Personally, I would pay attention to the format in which eminent photo hosting sites give, incl. pinterest.
For example, I would not take a steam bath, and give zheypegi.
But there is another trick with veppy - it is more difficult to replicate it. That is, not anyone will be able to save it, and then use it somewhere. Which is a plus in your case.
* this is when they finally made hardware support for H.265 and VP9, ​​we just lacked a new codec that does not have hardware and browser support, and it will have to be implemented for years to come.