S3 Browser has been renamed to CS Browser.

CS Browser is a powerful Windows client compatible with Amazon S3, Amazon S3 Glacier, and Amazon S3 compatible cloud storage services. CS Browser helps you work with buckets and files from a familiar Windows interface: upload and download data, manage permissions, organize objects, and handle routine storage tasks without switching to command-line tools!

Powerful and easy to use, it will help you:

• Reliably Upload and Download your files to and from Amazon S3.
• Publish your Content using Amazon S3.
• Browse, Create, Delete Amazon S3 Buckets.
• Share your Buckets with other Amazon S3 users.
• Use Buckets shared by other Amazon S3 users.
• Set Access Control on Buckets and Files.
• Keep your Files backed up in encrypted form.
• Manage your Amazon CloudFront Distributions.
• And Many More!

Cutting edge features make it exceptional!

• Multiple Amazon S3 Accounts and Amazon S3 compatible storage services
• Client Side Compression and Encryption (AES 256)
• Support for Data Integrity Checking to guarantee reliable file transfer.
• Convenient Folder Sync Tool - Upload Only New and Changed Files!
• Support for Amazon S3 Versioning and convenient versions manager.
• Full support for all Amazon S3 storage classes
• Full support for Standard Infrequent Access Storage Class
• Full support for OneZone-Infrequent Access Storage Class
• Processing very large amounts of files (millions) effectively!
• Support for AWS Identity and Access Management (IAM)
• Easy to use CloudFront Manager
• Support for very large files. Up to the 5 TB in size!
• Amazon S3 Server Side Encryption support.
• High-speed Multipart Uploads and Downloads with ability to Pause and Resume.
• Full support for Amazon S3 Transfer Acceleration
• An easy to use Bucket Sharing Wizard - share your Buckets with just two clicks!
• Convenient HTTP Headers Editor.
• Inclusion and Exclusion Filters
• Support for Bucket Lifecycle Rules
• Support for restore from Amazon S3 Glacier and Deep Archive storage classes.
• Support for bulk ACLs assignment (edit ACLs in batch mode).
• Default Http Headers to apply pre-defined HTTP Headers automaticaly!
• Advanced Web URLs Generator.
• Support for Static Website Hosting.
• Support for Amazon S3 Bucket Policies.
• Support for Cost Allocation Tagging and Cross-Origin Resource Sharing.
• Command Line Tools - Automate your Amazon S3 Tasks with ease!
• Bandwidth throttling and proxy support.
• Support for copy/move between amazon s3 accounts and buckets.
• Drag and Drop from Windows Explorer.
• Fast working multithreaded Http Engine.
• Support for Amazon S3 Bucket Logging (Server Access Logging).
• Support for Requester Pays Buckets.
• And tons of other cool features and tools!

28 Jul, 2026 - CS Browser Version 13.5.5 Released

• S3 Browser has been renamed to CS Browser
• New DPI-aware UI with improved High-DPI support
• Object Lock can now be enabled for existing buckets
• Added SSO support for Amazon S3 GovCloud accounts
• Added CLI support for sync exclusion rules from file
• Improved Parquet viewer compatibility
• Improved Folder Sync Tool Analyze phase reliability
• Improved support for S3-compatible storage providers
• Fixed duplicate password prompt and S3 path display issues
• Various UI improvements and internal stability fixes

23 May, 2026 - CS Browser Version 13.3.5 Released

• Added support for AWS European Sovereign Cloud
• Added Sync Exclusion Rules for the Folder Sync Tool
• Added new CLI commands - /file list-sync-jobs and /file run-sync-job
• Added option to keep Folder Sync Tool metadata cache file locally (UI and CLI)
• Improved Folder Sync Tool results: sorting, image preview, and quick actions
• Added support for AWS CLI SSO session profiles and AWS SSO token caching
• Improved Web URL Generator (TinyURL API and Signature V4 by default)
• Added advanced Copy menu for file names and paths
• Improved accounts import - append accounts and add drag-and-drop support
• Fixed various issues reported via Error Reports
• Various UI improvements and internal stability fixes

07 Apr, 2026 - CS Browser Version 13.2.5 Released

• Improved Folder Sync Tool analyze performance (parallel processing)
• Added option to disable metadata cache file in Folder Sync Tool (UI and CLI)
• Fixed an issue where SSO authentication could open two browser windows
• Fixed bookmark path opening when destination bucket is not current
• Fixed an issue with CSV export
• Various internal improvements and bug fixes