I personally think that this is the best solution which works from image browsing to editing and then to sharing it too. Despite being a freeware, you get so many advanced features that it put other premium software on shame. It has this really user-friendly platform which has the properties of image viewer, editor and converter too.
Apart from being lightning fast, FS Image Viewer is free to use too. I can say it the best in this list without any doubt because I am using it too and it is quite a helping hand for various purposes. The first mention as one of the best Picasa alternative is FastStone Image Viewer. You can find the details just right below. Not all of them do both the tasks but somewhere you are going to find them worth trying. However, after some research I came across some really amazing programs like Picasa which are even advanced in terms of editing tools. It was really difficult to find the programs similar in approach and working. There is no doubt that Picasa is one of a kind program perfect for photos organization as well as editing too. Ever since Google launched Google Photos, people were sure somewhere that Picasa was going down and when it got confirmed, the searching spree for Picasa alternative began.
