The best alternatives to Crosssec are Jumpshare, Backblaze, and Basefolder . If these 3 options don't work for you, we've listed a few more alternatives below.
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Tanka— Tanka = Slack + Glean, built for fast-growing startups.
Share unlimited files, screenshots, video recordings with your team and clients, upload & collaborate in real-time, preview 200+ file formats online - all for free!
PiBox is a modular storage server, allowing you to add any Raspberry Pi Compute Module, and two SATA solid state drives. It comes pre-loaded with KubeSail Software, which lets you run the software you care about most at home.