Tryton
Modular open-source ERP with strict accounting standards
About Tryton
Tryton is a 100% open-source, three-tier business application platform that provides a comprehensive set of ERP modules for small and medium businesses. Written in Python, Tryton emphasizes strict accounting standards, data integrity, and modularity. Its architecture separates the client, server, and database layers, supporting both desktop and web clients. Tryton covers accounting, sales, invoicing, inventory management, project management, purchasing, and more, with multi-company and multi-currency support built in from the ground up.
Pros & Cons
Pros
- 100% free and open source with no premium tiers or feature locks
- Strictest accounting standards of any open-source ERP
- Clean Python codebase that's easy to extend and customize
- Native multi-company and multi-currency support
- Strong data integrity with proper database constraints
Cons
- Dated user interface compared to modern web-first ERPs
- Smaller community and fewer third-party modules than Odoo or ERPNext
- Steeper learning curve for initial setup and configuration
- No official cloud-hosted option — self-hosting only
Key Features
Accounting
Strict double-entry bookkeeping with multi-currency, fiscal year management, and tax reporting
Inventory Management
Stock tracking with lot/serial numbers, multiple locations, and automated reorder rules
Sales & CRM
Quotations, sales orders, opportunity tracking, and customer management
Purchasing
Purchase orders, supplier management, and procurement workflows
Project Management
Project tracking, timesheet management, and resource allocation
Multi-Company
Native multi-company support with inter-company transactions and consolidated reporting
Modular Architecture
Activate only needed modules; extend with custom modules via Python
Three-Tier Architecture
Separate client, server, and database layers for scalability and security
Pricing
- All modules included
- Unlimited users
- Desktop and web clients
- Community support
- Service provider network
- Implementation assistance
- Custom development
- Training