Squoosh by GoogleChromeLabs
Make images smaller, right in the browser.
Squoosh is an image compression web app that allows you to dive into the advanced options provided by various image compressors.
Super simple, lightweight, amazing UI, very good compression options, no need to download an application, free, open source, use offline
Made by Google, but Open Source so not a con
I now use this for all my simple compression needs, it's an amzing application which really showcases the potential of webapps and the combination of WASM and JS. The UX is a blast and ofcourse it also works really well on mobile, I love it!Will Willems has used this product for one week.