Web-based FTP Clients

AnyClient is a Java based web application. Although not as powerful as a desktop application, it is convenient when you occasionally need to connect to FTP site from other PCs (the only condition is the PC must have Java installed). Another good thing is, AnyClient requires no sign up. Note that if you are behind a proxy or a firewall that does not allow traffic on port 21, you won't be able to use this tool.

Other alternatives are net2ftp, 01ftp, and jscape.