What are some good programs for optimizing images on a website?

Question

Image optimization

Hello! I decided to start optimizing my site for the first time, I started with images. Perhaps a similar question has already been asked here more than once, but maybe something new has appeared, changed. In general, tell me good programs for optimizing images.
I downloaded the entire archive of the site to my PC and am going to massively go through the catalogs.
Because there are a lot of images, you need a program with batch processing, respectively!

Answer 1

ImageMagick

Answer 2

jpegclub.org/jpegtran

Answer 3

I can recommend a very good service in terms of "quality / file size", but batch processing is not so simple.
kraken.io

Answer 4

You can hang a watcher that will monitor the appearance of new images on the site and compress in the background without losing quality,
for example, this
https://github.com/OrlovEvgeny/TinyJPG