EdtFTPnet
edtFTPnet is an open source FTP client library for Windows licensed under the LGPL. It was first released in 2003, and was ported from edtFTPj. It is supplied as a DLL and can be incorporated into Windows applications that require FTP functionality. edtFTPnet has also been successfully tested for use on Mono, and so can be used on Unix platforms that support Mono. edtFTPnet is also known as edtFTPnet/Free. There is also a commercial version known as edtFTPnet/PRO which includes the following additional features: support for FTPS, SFTP and SCP, multiple protocols supported in the one component, multiple, simultaneous transfers by use of FTP connection pools, directory transfers and directory synchronization. The latest version, 12.0, supports TLS 1.3. See also

 Comparison of FTP client software

References

External links
 Official website for edtFTPnet
 Creating an FTP Client in .NET

Free FTP clients
Software that uses Mono (software)
Windows-only free software