S3 Browser Pro - The Fastest Way to Upload your files to Amazon S3. Super fast uploads to Amazon S3.
S3 Browser
Free Windows Client for Amazon S3 and Amazon CloudFront
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Upload and Download your files at the maximum speed possible

Limitations of the TCP/IP protocol make it very difficult for a single application to saturate a network connection.

But S3 Browser Pro allows you to upload and download your files using network connection at the full speed!

How it works for large number of small files:

Pro Version

Multiple small files are uploading at the same time

Pro version allows you to upload and download multiple files at the same time

Multiple files are uploading/download at the same time. Each TCP connection is working at the full speed. In sum you are getting the speed you're paying for!

Multiple small files are uploading at the same time

Screenshof from NetLimiter that shows how network connection is used by S3 Browser Pro

Free Version

Free version is limited up to the 2 simultaneous uploads

Free version is limited up to the 2 simultaneous uploads

Only two files are uploading or downloading simultaneously. Free version allows up to the 2 concurrent uploads or downloads. For example you are paying for 2Mb uploading speed, but in fact each connection is limited by the protocol, let's say up to the 256 Kb. In this case you are using only 512 Kb of 2048 allowed.

Only two files are allowed at a time

Screenshof from NetLimiter that shows how network connection is used by S3 Browser Freeware

How it works for large files:

Recently, Amazon S3 introduced a new multipart upload feature.

You can now break your large files into parts and upload a number of parts in parallel. If the upload of a part fails, you can simply restart it. You can improve your overall upload speed by taking advantage of parallelism.

Multipart upload feature is enabled by default in S3 Browser Free and Pro. All files larger than 5 Mb will be uploaded via multiple parts in parallel.

Multipart download feature is also supported by S3 Browser Free and Pro!

But as you already know, Free version is limited up to the 2 simultaneous transfers.

Pro Version

Multipart upload: parts of the large file are uploading simultaneously

Multipart Transfers: small parts of large file are uploading or downloading simultaneously

Multiple parts are uploading or downloading at the same time.

You are getting full broadband speed.

Multiple small files are uploading at the same time

Screenshof from NetLimiter that shows how network connection is used by S3 Browser Pro

Free Version

Multipart Uploads: Free version is limited up to the 2 simultaneous uploads

Multipart Transfers: free version is limited up to the 2 simultaneous uploads or downloads.

Only two parts are uploading or downloading simultaneously.

Free version allows up to the 2 concurrent transfers.

Only two files are allowed at a time

Screenshof from NetLimiter that shows how network connection is used by S3 Browser Freeware

To adjust the number of concurrent uploads and downloads:

Click Tools -> Options -> Queueing

Click Tools -> Options

Click Tools -> Options to show Options window

Configure the number of concurrent uploads and downloads and click OK.

Configure the number of concurrent uploads

Configure the number of concurrent uploads and downloads and click OK

Get Your Pro Version Now!

S3 Browser 4.8.7 Freeware
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