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Dolibarr ERP & CRM is a modern and easy to use open-source web software package to manage your business (customers, invoices, orders, products, stocks, agenda, e-mailings, shipments...).

Tryton is a three-tiers high-level general purpose application platform under the license GPL-3 written in Python and using PostgreSQL as database engine.

The suite of applications Stoq is an innovative set of business management applications available as free and open source software.

FrontAccounting is a simple, but powerful, system for the entire ERP chain and covers:

Free and open source human resource management software (HRMS / HRIS) with rich features and easy to use interface. It covers personnel information management, employee self service, leave, time & attendance, benefits, and recruitment.

The most popular version of Americas #1 small business financial software helps make your business more profitable.

]project-open[ is an open-source based Project-ERP for medium and small project oriented companies.

When you use Highrise, contacts and communication history can be shared across your entire company. No more “Jim has the client’s number and he’s out of the office today.” No more “I don’t know what Jane told the printer last week.” No more “Oops, I didn’t know you already called her back—I just did too.” With Highrise, everyone’s always on the same page.

Compiere open source ERP software provides a modern, highly adaptable, low-cost ERP business solution

inoERP is an open source php based enterprise management system. The ERP systems contain all the required modules for running any small to mid-size businesses.The features are very similar to Oracle R12/ Fusion Application and SAP. It also contains a light weight CMS which seamlessly integrates with the ERP

iDempiere Business Suite, also known as OSGi + ADempiere, is an open source Enterprise Resource Planning (ERP) software. It has also customer relationship management (CRM) and supply chain management (SCM) functions. It is in contrast to proprietary or most other open source ERP solutions driven only by a community of supporters.

webERP is a complete web based accounting/ERP system that requires only a web-browser and pdf reader to use. It has a wide range of features suitable for many businesses particularly distributed businesses in wholesale and distribution. It is developed as an open-source application and is available as a free download to use. The feature set is continually expanding as new businesses and developers adopt it.There are on average 5,000 downloads per month.

ADempiere is a commons-based peer-production of Open Source ERP Applications. This project has a bazaar of Citizens which votes in a Project Management Committee every two years.