FTP vs. TFTP: Key Differences Explained in 60 Seconds
FTP (File Transfer Protocol) is a robust, full-featured protocol that lets you move files between computers over TCP/IP, offering login, directory browsing, and resume capabilities. TFTP (Trivial File Transfer Protocol) is its ultra-light sibling—no login, no browsing, just bare-bones file push/pull over UDP, designed for speed and minimal code.
People confuse them because they both start with “FTP” and move files, yet one powers daily website uploads while the other quietly flashes firmware to routers during 3 a.m. reboots. Knowing which tool fits saves you from wondering why your 2 GB video stalls on TFTP or why your router won’t accept FTP.
Key Differences
FTP rides on TCP port 21, supports authentication, large files, and directory listings. TFTP uses UDP port 69, skips credentials, and caps transfers at 32 MB—perfect when memory is tight but risky on noisy networks.
Which One Should You Choose?
Use FTP for website updates, cloud backups, or any task needing reliability and user control. Grab TFTP only when flashing firmware, booting diskless workstations, or inside closed, trusted LANs where speed beats security.
Can I resume interrupted transfers?
FTP supports resume; TFTP does not—restart from scratch.
Is TFTP secure?
No encryption or login; use only within isolated networks or add VPN.