S3 Browser is a free client interface for Amazon S3 Service.Amazon S3 provides a simple web services interface that can be used to store and retrieve any amount of data, at any time, from anywhere on the web.

S3 Browser will help you:

Organize your Amazon S3 buckets and files
Create public URLs to share the files.
Browse, create, delete Amazon S3 buckets
Upload and download files to and from Amazon S3
Set Access Control on buckets and files.
Keep your files backed up on a multiple data centers.

Cutting Edge Features Make It Exceptional:

Special algorithms are used to decrease the number of requests and save your money!
User Frendly Interface.
Fast working multithreaded Http Engine.
Full Unicode Support.
Drag and Drop Support
Portable version of S3 Browser is available.