REI3

Self-Hosted

Open-source business management platform for budgeting, invoicing & operations

Overview

REI3 is a self-hosted, open-source platform that integrates budgeting, invoicing, inventory management, and CRM into one unified system. It features a no-code interface for customizing modules to fit specific financial workflows, supports Docker deployment for easy self-hosting, and provides real-time data sync across devices. Designed for small to medium businesses, it eliminates reliance on proprietary SaaS tools, allowing full control over financial data while managing operations efficiently.

Self-Hosting Resources

Find Official Image on Docker Hub View Source & Docs

Below is a reference structure for docker-compose.yml. ⚠️ Do NOT run blindly. Replace placeholders with official values.

docker-compose.template.yml TEMPLATE


version: '3'
services:
  rei3:
    image: <OFFICIAL_IMAGE_NAME>:latest
    container_name: rei3
    ports:
      - "8080:<APP_INTERNAL_PORT>"
    volumes:
      - ./data:/app/data
    restart: unless-stopped

Key Features

Integrated budgeting and invoicing modules
No-code builder for custom financial workflows
Docker-based deployment for self-hosting
Real-time financial reporting and data tracking

Frequently Asked Questions

? Is REI3 hard to install?

REI3 is easy to deploy using Docker, which simplifies self-hosting. Official documentation includes step-by-step guides for local servers or cloud platforms like AWS/DigitalOcean, making it accessible for users with basic server knowledge.

? Is REI3 a good alternative to QuickBooks?

Yes—REI3 offers core financial features like invoicing and budgeting similar to QuickBooks, plus self-hosting privacy and no subscription costs. It also adds inventory/CRM modules often locked behind QuickBooks' paid tiers.

? Is REI3 completely free?

REI3 is open-source under the MIT License, so it’s fully free to use, modify, and self-host. There are no hidden fees or premium tiers—all features are available at no cost.

Top Alternatives

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Tool Info

Pricing Open Source

Category Money, Budgeting & Management

Platform Self-Hosted

Pros

⊕ Privacy-focused self-hosting (full data control)
⊕ No recurring subscription fees
⊕ Customizable to unique business needs
⊕ Unified platform for finances and operations

Cons

⊖ Requires server or cloud instance for deployment
⊖ Learning curve for advanced module customization
⊖ Fewer third-party integrations than SaaS alternatives