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Open Source Communication & Collaboration Tools

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167 projects, sorted by GitHub stars.

DCTS

Alternative toDiscord

Self-hosted Discord-style chat with encrypted DMs and voice

  • 641 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

Orbit Workspace

Alternative toLinear

Self-hosted team workspace: tasks, docs and chat in one binary.

  • 641 GitHub stars
  • Apache-2.0Licence Apache-2.0

Oxynote

Alternative toNotion

Technical wiki with live metrics, draft reviews, and real-time editing

  • 556 GitHub stars
  • Apache-2.0Licence Apache-2.0

Valour

Alternative toDiscord

Open source Discord alternative with flexible community tools

  • 399 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #Chat

SpeakoFlow

Alternative toWispr Flow

Voice dictation and AI assistant for your desktop, fully offline

  • 397 GitHub stars
  • MITLicence MIT

Openlive

Alternative toOpenAI Realtime API

On-device voice loop for AI agents and coding assistants

  • 396 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI Agents

texpile

Alternative toOverleaf

Local, offline LaTeX and Typst editor with live preview

  • 374 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

humla

Alternative toMumble AI

Private Mac meeting notes: no bot, on-device AI, MIT licensed.

  • 344 GitHub stars
  • MITLicence MIT

BookStack

Alternative toConfluence

Self-hosted team wiki with WYSIWYG editing and built-in diagrams

  • 315 GitHub stars
  • MITLicence MIT

Nerimity

Alternative toDiscord

Self-hosted chat with servers, custom emoji, bots, and themes.

  • 300 GitHub stars
  • GPL-3.0Licence GPL-3.0
  • #Chat

Diction

Alternative toWispr Flow

iOS keyboard with self-hosted speech-to-text, no word limits

  • 257 GitHub stars
  • MITLicence MIT

Orgnise

Alternative toNotion

Centralize wikis, docs, and project tasks in a self-hosted workspace.

  • 247 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
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