Cost / License
- Free
- Open Source (AGPL-3.0)
Application types
Platforms
- Online
- Self-Hosted
- Drupal
- Joomla
- Software as a Service (SaaS)
- Wordpress

Proteus is described as 'End-to-end project management solution developed for the energy and engineering consulting industries, helping teams meet project demands across the full lifecycle, from proposal development to project delivery' and is a CRM system in the office & productivity category. There are more than 100 alternatives to Proteus for a variety of platforms, including Web-based, Windows, Mac, Linux and Android apps. The best Proteus alternative is Odoo, which is both free and Open Source. Other great apps like Proteus are ERPNext, Dolibarr, Bitrix24 and Mautic.

]project-open[ is an open-source based Project-ERP for medium and small project oriented companies.
Vtiger CRM is award-winning software used by small and medium sized businesses to grow sales, improve marketing ROI, and deliver great customer service.




Sell more, live better: Sellf is a mobile application that redesigns the traditional CRM, starting from salespeople needs and turning sales into a funny activity.




SuiteCRM provides an enterprise-grade Customer Relationship Management (CRM) application to a global community of users and software developers. It is a robust and credible alternative to Salesforce, Microsoft and the major CRM vendors.

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.




Kommo is a Messenger-based CRM that excels at taking the conversation with your customers to the next level. With messengers, the connection is personal. We support all major messenger platforms. Create your own chatbots with our code-free chatbot builder, and make sure your...







BuzzFlow is an online web CRM that tightly integrates with G-suite. It's also available inside Gmail inbox. It is unique in tagging live email conversations to deals. Visual pipelines helps you succeed in sales with activity based selling process.




Silverpop is a top provider of marketing software that unifies marketing automation, email, mobile, and social.
Affinity is designed for small businesses and helps manage their entire organization with a complete set of tools including CRM, E-Commerce, Business Intelligence, ERP, Order Management, Disaster Prevention and Document Management.



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