LetterSpace

Open Source Self-Hosted Newsletter Platform

LetterSpace is an open source newsletter application that gives you complete control over your subscriber lists and email campaigns.

Features

• Full Ownership: Self-host your newsletter infrastructure
• Subscriber Management: Organize and segment your audience
• Email Campaigns: Create and send beautiful emails
• Analytics: Track open rates, clicks, and subscriber growth
• Custom Domains: Use your own domain for professional branding
• API Access: Integrate with your existing tools and workflows

Tech Stack

• NextJS
• TypeScript
• TailwindCSS
• Shadcn UI
• PostgreSQL
• TRPC
• Prisma

Environment Variables

Required Variables

• JWT_SECRET - Secret key for JWT token signing
• DATABASE_URL - PostgreSQL database connection string

Optional Variables

• WEBHOOK_MEMORY_LIMIT - Memory limit for webhook transformer runtime in bytes (default: 16777216 = 16MB)
• WEBHOOK_MAX_STACK_SIZE - Maximum stack size for webhook transformer in bytes (default: 262144 = 256KB)

Getting Started

Deployment

Detailed deployment instructions are available in our deployment guide.

Contributing

We welcome contributions! Please see our contributing guidelines for more details.

License

MIT

Support

• Documentation
• GitHub Issues

Visit letterspace.app for more information.