Why would you want to optimize images? Isn’t it hard? Let’s find out.

Here is a great explanation from Jeff Antwood:

This is free bandwidth, people!

Jeff Atwood
https://blog.codinghorror.com/zopfli-optimization-literally-free-bandwidth/

Basically, optimization saves storage space on your drive and bandwidth when being uploaded/downloaded.

Convinced? Great! Here are the tools I use:

• In case of WordPress, I’d recommend plugin Smush.
  https://wordpress.org/plugins/wp-smushit/
• On Windows you can optimize images and other files with FileOptimizer.
  http://nikkhokkho.sourceforge.net/static.php?page=FileOptimizer

Don’t worry about the optimization itself, it’s easy as clicking a button :]

Here is a great (even though a bit older) comparison of various optimizers:
http://www.creativebloq.com/design/image-compression-tools-1132865/3

Happy optimizing everyone!