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Tftpd64 vs Transfer: catalog facts
Tftpd64	Transfer
Free Free and open source.	Paid US$19.99 with a 3-day free trial.
Windows	macOS
TFTP, DHCP, DNS, SNTP and Syslog servers in one program Supports TFTP options for faster transfers	TFTP, SFTP, FTP, HTTP and HTTPS in one app Works immediately after launch
Windows only TFTP itself has no encryption or strong authentication	macOS only, requires macOS 13.5 or later Short 3-day trial before purchase
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.