Cloudberry Explorer PRO for Amazon S3 offers some advanced features over Freeware version. It makes managing files on Amazon S3 and Amazon Glacier even easier, more secure and cost efficient.
S3 browser by CloudBerry comes with an user end data encryption and compression, an ability to copy objects up to 5 TB and configure the predefined set of HTTP headers for every upload.
PRO edition of CloudBerry Amazon S3 browser
also supports Amazon IAM allowing to create and manage users, group of users and their data access policies.