How to Build Your Own Slack
Replace Slack with a custom build. Your team's collective brain
Build Difficulty: 5/5
Build a working replacement in a weekend with AI tools
Estimated Timeline
Based on 9 features at Weekend Project difficulty, expect about One weekend with AI-assisted development.
Recommended Tech Stack
Full-stack React framework with API routes and server components
PostgreSQL database, auth, and real-time subscriptions
Utility-first styling for rapid UI development
Real-time messaging and live updates
Key Features to Replicate
Top features across 5 categories. See all 9 features
Core(4 features)
Hold meetings with team members, either one-on-one or in groups
Organize conversations into channels, making it easy to find and join discussions
Share files with team members, either one-on-one or in groups
Send messages to team members, either one-on-one or in groups
AI(2 features)
Search for messages, files, and conversations using AI-powered search
A personal AI assistant that helps with tasks and answers questions
Admin(1 features)
Customize the platform to fit the needs of your team
Integration(1 features)
Integrate with various third-party apps and services
Security(1 features)
Enterprise-grade security and compliance features
Cost Calculator
Keep Paying Slack
Build It Yourself
Total Cost Comparison
DIY hosting estimate based on Vercel + Supabase free/pro tiers (~$20/mo). Build time estimated from 9 features at very easy complexity.