MCSTools-s3 icon

App Specs
File size:
3.82 MB
March 27, 2014
April 5, 2015

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MCStools-s3 is the best Amazon Web Services (AWS) S3 Client Application for OSX.

MCStools-s3 is a rich full feature client for the Amazon Web Services (AWS) S3 Platform fully integrated with the OSX environment allowing drag-n-drop of files to and from AWS S3.


  • Drag-n-drop from MCSTools-s3 to OSX Finder
  • Drag-n-drop within MCTools-s3 – moves or copies files in AWS S3.
  • Drag-n-drop from AWS Bucket to AWS Bucket (in same AWS Account)
  • Streams multiple files to and from Amazon S3
  • Multi-Part upload of large files > 5G
  • Supports multiple Regions including dragging files between region
  • Supports all primary Regions
  • Currently does NOT support China or AWS GovCloud regions
  • MD5 Checksums confirm upload and downloads
  • MD5 Checksums for large files > 5G (v1.3.3)
  • Bulk deletion of objects for entire bucket
  • Detail error handling
  • Ability to cancel transfers
  • Streams upload / downloads to minimize memory impact
  • Multiple mime types supported
  • Ability to rename Files
  • View files as Tree, Columns or flat list formats
  • Search objects by name across the entire bucket
  • Modify or add AWS bucket Properties including; Permissions, Website, Lifecycle (Expiration or Glacier), and Tags.
  • Modify or add AWS Object Properties including Reduced Storage, Server Side Encryption, Permissions and Metadata (Tags)
  • Supports multiple AWS accounts in as single interface.
  • "Show in Finder" links to files that have been download or uploaded from OSX to AWS.

    The free version of MCSTools-s3 allows you to view all AWS S3 data. It does NOT allow Download, Upload, Rename or Delete of S3 Objects or editing of any data. To unlock these features you have three options, a perpetual license for a one time price of $23.99 or two subscription options described below.

    One perpetual license option:
  • MCSTools-s3 Lifetime for $23.99

    Two subscription options:
  • MCSTools-s3 Premium monthly for $0.99
  • MCSTools-s3 Premium yearly for $9.99

    Subscriptions will be charged to your credit card via your Itunes account. Your subscription will automatically renew unless you canceled at least 24-hours before the end of the current period. You will not be able to cancel your subscription during the active period. Subscriptions may be managed and/or cancelled in the App Store after purchase.

  • What's New
    Simplified Synch Indicators to Clear, Spin, Green (success) and Red (fail)
    Added multi Object Permissions update - select multiple objects then update permissions for all at once
    Fix bug in Bucket LifeCycle (improper error message) and Permissions (not displayed)
    Fix bug in Object Permissions (not saved properly)

    MCSTools-s3 (com.mcsio.mcstools-s3) is a Mac software application that has been discovered and submitted by users of The latest version that our users have reported running on their systems is MCSTools-s3 1.5.10.

    Operating System: Mac

    Minimum OS version: 10.9

    Copyright: Copyright (c) 2014 McNeill Consulting Services, Inc. All rights reserved.