Google stopped supporting Picasa3 on March 15, 2016, and removed the installation file from the Picasa and Picasa Web Albums Help website. Read more about Picasa's 'retirement'.
The latest version for Windows computers is Picasa 3.9.141 Build 259
The latest version for Mac computers is Version 3.9
See below for directions how to find the latest Picasa installation file for Windows and Mac.
If you have already downloaded the Picasa installation file, save the file to several different places such as external drives, flash drives (USB), CDs, Google Drive. You would use that file whenever you need to install or reinstall Picasa3 to another computer, to install after your computer was reformatted, or for any other reason you need to reinstall.
For Windows users
A contributor (Product Expert) has made the final Picasa3 setup file for Windows available at OneDrive:
For Mac users
At your own risk: https://picasa.en.uptodown.com/mac
We have been informed that this does no longer work on the latest Macs.
Any feedback on this thread at the Photos forum would be welcome. Mark your post as an answer, that triggers an email to those who subscribed.
How to install the latest version
Check your version of Picasa by going to Help > About Picasa
In the 'About Picasa' box under the Picasa logo is the version and build number
If your version is earlier than the final version 3.9.141 build 259, do the following:
Locate the latest version of Picasa .exe file (see section above) and run the installer over your previous version
You don't need to first uninstall your present Picasa version
The installation process will find the existing Picasa database and photos on your computer.
Your photos exist on your computer and will not be harmed or lost during an installation
If Picasa fails to install, then uninstall your present version, go to Tools > Options > General tab. Under Automatic Updates, change to 'Don't check for updates' then click OK. Install the latest version of Picasa.
For Ultra HD-screens (Windows): right click on the Picasa-icon on desktop and choose Properties > Compatibility: you can switch-on an option for High DPI.
Please see 'Quick Start Guide' for more help in setting up Picasa
Picasa is a computer-based program, Google Photos is cloud-based. Picasa is old, Google Photos is new. If you take your pictures with a smartphone, the Google Photos app is fully automatic for uploading your photos to your Google account online and making them available to all your devices, including your computers. Picasa is a program developed by Google, Inc. Whose function is to allow the user view and organize the pictures in his/her Mac. Picasa searches for all the images in your HD and shows them on an eye-catching and intuitive interface. Without any doubt, the presentation is one of.
The prevalence of digital cameras means that many home computers are used to store hundreds if not thousands of digital photographs. It can be difficult to manage such a large collection of files, but Google Picasa may be able to help. Upon installation, the program will automatically scan your hard drive and catalogue and images that are detected, These can then be organised into groups, tagged for easy location in the future and edited using a range of simple but effective tools.
Geotagging is available so you can view the location in which a photo was taken on a map, abd the ability to create web albums mans that it is easy to share your favourite images with friends and family. Whether you're looking to correct the colours, remove red eye or fix lighting problems with imperfect images, or you want to get a little more creative, Picasa has all the tools you need to get to work with your photographs.
Picasa For Mac Os X
With 1GB of online storage provided free of charge, there is plenty of scope for displaying the best of your pictures on the internet and the effective organisation tools mean that you will never lose an image again.
Picasa 3.9 is a major update. New features include the ability to share your images through Google+ circles, Picasa name tags through Google+, more photo editing effects and a side-by-side editing feature
Note that Picasa is now unsupported by Google. We're now hosting the installation files locally.
Google Picasa Download Mac
Verdict:
Picasa Download For Mac
Photo editing, tagging, organisation and web album creation; Google Picasa has it all