Categories

FTP Clients

Choose a transfer client by protocol

FTP clients transfer files between a local machine and remote servers using FTP, FTPS, SFTP, SCP, WebDAV, or provider-specific storage connections. FileZilla, WinSCP, and Cyberduck are a small but useful set. The first decision is the protocol required by the host, not the interface. Credentials, host keys, certificates, and sync rules can affect both security and data loss. Treat upload tools carefully on production servers.

Avoid overwrite mistakes

  • Use SFTP or FTPS where available.
  • Verify host keys and certificates.
  • Review saved-password storage.
  • Dry-run sync rules on a test folder.
  • Keep backups before publishing over existing files.

Let the server protocol choose the client

FTP clients transfer files using FTP, FTPS, SFTP, SCP, WebDAV, or provider-specific storage connections.

The right starting point is the host's required protocol, authentication method, certificate or host-key behavior, and overwrite safeguards.

Website publishing

FileZilla, WinSCP, and Cyberduck can publish files when the host protocol is supported.

Compare local and remote path clarity, transfer modes, overwrite prompts, resume behavior, permissions, and queue control.

Secure server transfer

SFTP and SCP workflows rely on SSH keys or passwords and host-key verification.

Unexpected host-key changes should not be ignored. They may indicate a server rebuild, but they can also indicate a connection risk.

Sync and broader storage browsing

Cyberduck is useful for broader WebDAV or storage endpoints, while WinSCP is strong for scripted Windows server workflows.

Synchronization should be tested away from production because delete propagation and timestamp rules can remove correct files.

Transfer client comparison by protocol need

SoftwareProtocol needMain workflow risk
FileZillaFTP, FTPS, and SFTP transfersInstaller and credential settings should be reviewed
WinSCPWindows SFTP and SCP workflowsWindows-focused
CyberduckWebDAV and broader storage browsingAccount and provider support varies

Credentials, host keys, and publishing mistakes

Transfer clients store or handle server names, usernames, passwords, SSH keys, tokens, and logs.

Use protected credential storage, avoid saved passwords on shared machines, and keep a backup before publishing over existing server files.

Server transfer safety checks

Should FTP still be used when SFTP is available?

Prefer SFTP or FTPS where the host supports it.

Plain FTP is weaker because it does not protect credentials and file transfers in the same way.

Why does host-key verification matter?

It helps confirm that the SSH server is the one expected.

An unexpected change should be investigated rather than clicked through automatically.

What should be tested before using sync on a live site?

Test upload, download, rename, delete, timestamp comparison, and permission behavior in a safe folder.

Only then point sync rules at production paths.