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ProFTPD vs CrushFTP: catalog facts
ProFTPD	CrushFTP
Free Free and open source.	Paid Commercial software sold through licences listed on its pricing page.
Linux, Self-hosted	Windows, macOS, Linux, Self-hosted
Modular design lets you add only the features you need Supports FTP, FTPS and SFTP	Very wide protocol and cloud storage support Runs on almost any OS with Java 8
Built from source and configured by hand, which takes server experience Server only, with no graphical management interface	Paid software Aimed at business deployments rather than home use
Downloadable app, Self-hosted	Downloadable app, Self-hosted
Open source	Closed source
License: GPL-2.0	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it 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.