Self-Hosted Software Resource Planning - Enterprise Resource Planning

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1. Dolibarr

Dolibarr ERP CRM is a modern software package to manage your company or foundation activity (contacts, suppliers, invoices, orders, stocks, agenda, accounting, ...). ([Demo](https://www.dolibarr.org/onlinedemo.php), [Source Code](https://github.com/Dolibarr/dolibarr)) `GPL-3.0-or-later` `PHP`

2. ERPNext

Free open source ERP system. ([Source Code](https://github.com/frappe/erpnext)) `GPL-3.0` `Python`

3. LedgerSMB

Integrated accounting and ERP system for small and midsize businesses, with double entry accounting, budgeting, invoicing, quotations, projects, orders and inventory management, shipping and more. ([Demo](https://demo.cloud.efficito.com/erp/1.5/login.pl), [Source Code](https://github.com/ledgersmb/LedgerSMB)) `GPL-2.0` `Perl`

4. Odoo

Free open source ERP system. ([Demo](https://demo.odoo.com/), [Source Code](https://github.com/odoo/odoo)) `LGPL-3.0` `Python`

5. OFBiz

FOSS enterprise resource planning system with a suite of business applications flexible enough to be used across any industry. ([Source Code](https://svn.apache.org/viewvc/ofbiz/)) `Apache-2.0` `Java`

6. Tryton

Free open source business solution. ([Demo](https://www.tryton.org/download.html), [Source Code](https://hg.tryton.org/)) `GPL-3.0` `Python`