Odoo, formerly known as OpenERP, is an open-source business application suite developed in Python under the AGPL license. It follows the Open Core software business model and serves a global user base of 2 million.

ERPNext is a free and open-source integrated Enterprise Resource Planning (ERP) software developed by Frappé Technologies Pvt. Ltd. and is built on MariaDB database system using a Python based server-side framework.

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...).

Replace a multitude of services and apps with a single ecosystem for your business to work in. Explore the tools of Bitrix24.

EspoCRM is an Open Source CRM (Customer Relationship Management) software that allows you to see, enter and evaluate all your company relationships regardless of the type. People, companies, projects or opportunities. Written in PHP and JavaScript.

Comprehensive web-based CRM offering solutions for sales, marketing, service, and call centers, with mobile app, AI insights, customizable tools, and AppExchange for industry needs.

Amazing CRM on top of Gmail.

Tryton is a three-tiers high-level general purpose application platform under the license GPL-3 written in Python and uses PostgreSQL as database engine. It's the core base of a business solution providing modularity, scalability and security.

Insightly is a web-based application that serves as a project management tool and a Customer Relationship Management (CRM) system. It integrates with Google Apps through a Gmail gadget and supports Google Docs.

Microsoft Dynamics is a line of ERP (enterprise resource planning) and CRM (customer relationship management) applications developed by the Microsoft Business Solutions group within Microsoft. Microsoft Dynamics applications are delivered through a network of reselling partners...

Close is a sales productivity platform built to help you close more deals. With built-in calling, SMS, and email—your team can communicate with prospects and customers all in one place. It’s an “all-in-one” platform which you can use standalone without needing any other sales...

Sentrifugo is an Open Source HRMS Tool which can be easily configured to meet your organizational needs. It's completely FREE and has no hidden costs! Sentrifugo offers you a bundle of exceptional features and modules for managing your HR processes.