Open Source Communication & Collaboration Tools

Alternative toConfluence

Self-hosted collaborative wiki and documentation tool

• 22,041 GitHub stars
• AGPL-3.0Licence AGPL-3.0

Alternative toTrello

Private self-hosted Kanban boards for Trello migration

• 21,130 GitHub stars
• MITLicence MIT

Alternative toWWhatsApp

Private messaging without user IDs or servers.

• 19,580 GitHub stars
• AGPL-3.0Licence AGPL-3.0

Alternative toRask AI

Open source video translation with AI dubbing and voice cloning

• 19,477 GitHub stars
• GPL-3.0Licence GPL-3.0

Alternative toCleanShot X

Open source screen recorder for macOS with web tech

• 19,373 GitHub stars
• MITLicence MIT
• #Video

Alternative toX (formerly Twitter) Premium

Own your account and move freely across compatible servers

• 18,349 GitHub stars
• MITLicence MIT

InCommunication & Collaboration

Official Lark/Feishu CLI with 200+ commands and AI Agent Skills

• 17,758 GitHub stars
• MITLicence MIT
• #AI Agents

Alternative toJira

Plan projects with Gantt, Scrum, and Kanban, all self-hostable

• 16,508 GitHub stars
• GPL-3.0Licence GPL-3.0

Alternative toVimeo

Federated video hosting you own, with no YouTube dependency

• 15,372 GitHub stars
• AGPL-3.0Licence AGPL-3.0
• #Video

Alternative toGrammarly

Self-hosted grammar and style checker for 30+ languages

• 15,169 GitHub stars
• LGPL-2.1Licence LGPL-2.1