Suggest Tools | Quality Image Compretion But No Quality Reduced

Recently I started blogging and found out that image posting is tougher than writing something.
Most images I make some how are bit much heavy in size. When I try to compress them I lose the quality. Also I want the images to be picked up by the social medias. For example I am using twitter large image summary; so images should have a reasonable width a height.

Please suggest me some tools/softwares that will solve this problem. That will compress pictures in in the highest quality and lowest possible size. I would like a great image compressor; if it can not create image it's all right.

excuse my English; still not sharp enough. thanks in advance to all reading this.

 

I generally use Photoshop... Unfortunately, it's not a free program. Nor does it do pictures in bulk.

 

Please use Lightroom (you can download free trial here: https://creative.adobe.com/products/lightroom), I use Lightroom for all my editing, you can also set export settings to reduce the resolution and limit size i.e <100 kb, you can also set up sharpness there and photos although small-sized they look crisp and sharp with no significant quality loss.

And you can also select multiple images and do bulk exporting..!

Photoshop mentioned above is also a good tool to reduce the size of your images, however my favourite software is Lightroom.