The best replacement for ftp is sftp.

The best alternatives to ftp are rated as following:
★★★★★  sftp
★★★★★  http
★★★  scp
★★  smb
★★  ssh
★★  tftp
★★  vpn
★★  webdav
★  utp
★  dropbox
★  ftps
★  http faster
★  telnet
★  copy
★  passive ftp
★  http download
★  samba
★  ftp
★  sftp performance
  sftp faster
  sftp speed
  nfs
  scp faster
  ndm
  secure ftp
  active ftp
  fta
  api
  http for file transfer
  mft
  file transfer protocol
  stp
  fttp
  tcp ip
  web service
  scp what is faster
  utp cable
  mobile me
  fte
  web services
  utp cat5e
  http speed
  frontpage
  smtp
  cifs

Your alternative for ftp is not listed? Suggest!
Speaking about ftp, one probably shouldn't forget about ssl.

Other search terms related to ftp and their ratings are:
★★★★★ ssl
★★★ iis
★★ pgp
★ username and password
windows explorer
dropbox
wordpress
evox
pgp encryption
You have in mind a companion for ftp and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of ftp in all years. Click on graph for more.
ftp
sftp
http