Nationbuilder Alternatives

Odoo (formerly OpenERP) is a suite of open-source business apps written in Python and distributed under the AGPL license, under the Open Core software business model. It is used by 2 million users worldwide to manage companies of all size.

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.

A Constituent relationship management for the Civic Sector.

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.

Sugar is a complete CRM solution that automates your core sales, customer service and marketing processes, with a focus on the individual.

Insightly is a web-based project and Customer Relationship Management (CRM) application that integrates with Google Apps via a Gmail contextual gadget and Google Docs support.

One central platform to sell, bill and organise your work. Stop the mess with information spread across different tools, Excel sheets, and inboxes, and collaborate efficiently with your colleagues.

EyenBros is a social platform, where a community comes together to collectively hire a professional or an artist for their project. Members get to receive and discuss proposals from local pros. Choose the best one, fund it and manage the entire project together from home.

Open source CRM based on Django for startups and enterprises. It's completely customizable and cloud hosting ready.

This is a Ultimate project Management tool For Freelancer or individual service consultant where They can manage Their project, client, task, income and expenses also manage online payment. They can Chat With Their Client and Build A staff To Work.