File Sharing Open Source Tools

Alternative toNotion

Team wiki and knowledge base with realtime collaboration

• 40,988 GitHub stars

Alternative toSnagit

Screenshot and record with 80+ upload destinations on Windows

• 40,240 GitHub stars
• GPL-3.0Licence GPL-3.0

Alternative toMicrosoft OneDrive

Self-hosted collaboration hub with file sync, calendar, and messaging.

• 37,178 GitHub stars
• AGPL-3.0Licence AGPL-3.0

Alternative toSlack

Organized team chat with threaded conversations, self-hostable

• 26,085 GitHub stars
• Apache-2.0Licence Apache-2.0
• #Chat

Alternative to1Password

Open source password manager with end-to-end encryption and self-hosting.

• 20,427 GitHub stars
• AGPL-3.0Licence AGPL-3.0

Alternative toSlack

Secure team chat built on the Matrix open protocol

• 13,601 GitHub stars
• AGPL-3.0Licence AGPL-3.0
• #Chat

Alternative toWWhatsApp

A secure messaging app focused on privacy and user experience.

• 10,742 GitHub stars
• AGPL-3.0Licence AGPL-3.0
• #Chat

Alternative toDropbox

Self-hosted file sharing with data sovereignty for teams and enterprises.

• 8,837 GitHub stars
• AGPL-3.0Licence AGPL-3.0

Alternative toTailscale

Encrypted tunnels between machines, no account or IP needed

• 8,432 GitHub stars
• BSD-3-ClauseLicence BSD-3-Clause

Alternative toFlickr

Fediverse photo sharing: no central platform, fully user-owned

• 7,125 GitHub stars
• AGPL-3.0Licence AGPL-3.0