You can download Picasa for Mac at picasa.google.com. Make sure your machine meets the Mac system requirements. It's English-only at this time.
If you are unable to download Picasa, we also offer two tools for Mac users to upload photos directly to Picasa Web Albums:
- The Picasa Web Albums Exporter for iPhoto is a plug-in that uploads your photos directly from iPhoto.
- The Picasa Web Albums Uploader is a separate application you can use if you don't use iPhoto, or you want a few more features.
Learn more about these tools or to download them, please visit the Mac Uploaders page and click the Free Download button. The download includes both the Exporter and the Uploader tools.