WinSCP 6.3.3 - Free SFTP, SCP, S3, FTP client



WinSCP is an open source free SFTP client, FTP client, WebDAV client and SCP client for Windows. Its main function is file transfer between a local and a remote computer. Beyond this, WinSCP offers scripting and basic file manager functionality.

WinSCP features:

  • Graphical user interface
  • Translated into several languages
  • Integration with Windows (drag&drop, URL, shortcut icons)
  • U3 support
  • All common operations with files
  • Support for SFTP and SCP protocols over SSH-1 and SSH-2 and plain old FTP protocol
  • Batch file scripting and command-line interface
  • Directory synchronization in several semi or fully automatic ways
  • Integrated text editor
  • Support for SSH password, keyboard-interactive, public key and Kerberos (GSS) authentication
  • Integrates with Pageant (PuTTY authentication agent) for full support of public key authentication with SSH
  • Explorer and Commander interfaces
  • Optionally stores session information
  • Optionally supports portable operation using a configuration file in place of registry entries, suitable for operation from removable media

WinSCP 6.3.3 changelog:

Optimized working with large local directories: 2264

  • Loading large directory trees on the background.
  • Hidden directory trees are loaded only in the background.
  • Optimizing directory loading by checking existence of subfolders on the background.
  • Optimized reading directories for file panel.
  • Optimized browsing within directory tree with lots of subfolders.

Improvements to AWS/S3 authentication and configuration handling:

  • Allowed assuming IAM role. 2249
  • Credential profiles in .aws/config file are also recognized.
  • Preferring configuration file defined using an environment variable over the default one.
  • Only profiles that contain both aws_access_key_id and aws_secret_access_key are listed on the Login dialog
  • Bug fix: The .aws/credentials file path was resolved using AWS_CONFIG_FILE environment variable instead of correct AWS_SHARED_CREDENTIALS_FILE.

Other changes

  • Fallback to nonresumable transfer when temporary target file cannot be created. 2277
  • Logging can be enabled for installer subtasks.
  • Limited SFTP upload queue length to avoid networking congestion.
  • Bug fix: Possibility that files in root folder were incorrectly used.