WinSCP is a free, open-source file transfer client for Windows that supports SFTP, SCP, FTP, WebDAV, and Amazon S3 protocols. With over 150 million downloads, WinSCP has become one of the most popular tools for secure file management between local and remote systems.
The dual-pane interface displays local files alongside remote server contents, enabling intuitive drag-and-drop file transfers. Commander and Explorer interface modes accommodate different user preferences. Quick connect handles one-time connections while Site Manager stores frequently accessed servers.
WinSCP integrates with PuTTY, using saved sessions and sharing authentication settings. The built-in text editor opens remote files directly, saving changes back to the server automatically. External editor support launches preferred applications for editing.
File synchronization keeps directories matched between local and remote locations with automated or manual comparison and updating. Directory comparison highlights differences visually. Remote searching finds files on servers without downloading entire directories.
The scripting interface enables automation through batch files or PowerShell scripts. Command-line parameters integrate WinSCP into custom workflows. The .NET assembly provides programmatic access for applications.
Security features include password and public key authentication, keyboard-interactive authentication, and Kerberos/GSS authentication. Encryption covers TLS/SSL for FTP, SSH for SFTP/SCP, and HTTPS for WebDAV. Master password option encrypts stored site passwords for additional security.