Browse free open source CRM software and projects for Windows below. Use the toggles on the left to filter open source CRM software by OS, license, language, programming language, and project status.
Open source ERP and CRM web software for business
An enterprise-class CRM and more!
Powerful Open Source Email Marketing app with analytics & segmentation
Take your office and CRM into the cloud!
Free web-based open-source project management application
VICIdial Contact Center Suite
The multi-award winning SuiteCRM is the world's best open source CRM.
VIENNA Advantage, an enterprise level ERP with DMS and CRM
Free & Opensource Laravel CRM solution for SMEs and Enterprises
Growing and Sustaining Relationships
Enterprise project management replacement for Project Server
SuiteCRM translations - language packs
ERP Server
The most affordable CRM system according to Capterra
Simple, web-based address & phone book
Super Fast Open-Source ERP/CRM for small business on Node.js/MongoDB
DaybydayCRM an open-source CRM
Open-source flexible CRM
Archive your personal history
Moving in the right direction together!
Core Banking System for Microfinance
Controle Financeiro Free
Free Russian CRM based on Vtiger CRM project.