Is there a convenient OpenSource solution for organizing file access?

Question

FTP

Is there a convenient OpenSource solution for organizing file access?
It is necessary to organize convenient access to files for company employees, with access rights to folders, etc.

From what I know, the solution in bitrix24 looks convenient. But a separate solution is needed.

What is the best way to lift. As an option via FTP, but preferably with an interface.

Answer 1

Nextcloud (not owncloud), google about the difference.
There is Cyrillic.
Subcomputer - client or webdav
Option two - openmediavault

Answer 2

OwnCloud

Answer 3

NextCloud https://nextcloud.com/
OwnCloud fork seems to be developing faster