GitHub – BilalG1/openslack: Open-source Slack

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📂 **Category**:

📌 **What You’ll Learn**:

Open-source Slack

MIT License
Built with Bun
TypeScript
PRs Welcome

OpenSlack — channels with rich text, code blocks, and editor toolbar

Real-time team messaging with channels, threads, DMs, huddles, search, and file sharing. Self-host in minutes with Docker.

Quick Start

Prerequisites: Bun (v1.1+), Docker

git clone https://github.com/BilalG1/openslack.git
cd openslack
bun install
cp .env.example .env
docker compose up -d
bun run --filter @openslack/api db:migrate
bun run dev

Open http://localhost:3000.

Feature Comparison

Feature	Slack	OpenSlack
Messaging
Channels (public & private)	✅	✅
Direct messages	✅	✅
Threaded replies	✅	✅
Rich text editor	✅	✅
Emoji reactions	✅	✅
Message edit & delete	✅	✅
File uploads & previews	✅	✅
Message search	✅	✅
@mentions	✅	—
Real-time
Typing indicators	✅	✅
Presence (online/offline)	✅	✅
Unread counts	✅	✅
Desktop notifications	✅	✅
Huddles
Voice huddles	✅	✅
Video huddles	✅	—
Screen sharing	✅	—
Organization
Workspaces	✅	✅
Invite links	✅	✅
Member roles	✅	✅
UI
Dark mode	✅	✅
Syntax-highlighted code blocks	–	✅
Platform
Self-hosted	—	✅
Open source	—	✅
Bots & integrations	✅	—