NationBuilder

The core software is built by hundreds of community volunteers, and when you’re ready for more there are thousands of plugins and themes available to transform your site into almost anything you can imagine. Over 60 million people have chosen WordPress to power the place on the web they call “home” — we’d love you to join the family.

Drupal is an open source content management platform powering millions of websites and applications. It’s built, used, and supported by an active and diverse community of people around the world.

The Sales Cloud puts everything you need at your fingertips—available anywhere. From Social accounts and contacts to Mobile, Chatter, and Analytics, collaboration across your global organization and getting deals done faster is not only possible, it's easy.

Joomla is a simple and powerful web server application and it requires a server with PHP and either MySQL, PostgreSQL, or SQL Server to run it.

It is a Web Content Management System that allows companies to manage their web content (Web pages, digital assets, forms, etc) and also create digital experiences with this content on any platform web, mobile or IoT.

It is a customer relationship management solution that brings customers and companies together. It's one integrated CRM platform that gives all your departments — including marketing, sales, commerce, and service — a single, shared view of every customer.

Strapi is100% JavaScript, extensible, and fully customizable. It enables developers to build projects faster by providing a customizable API out of the box and giving them the freedom to use the their favorite tools.

It is built as a single-page React app. You can create custom-styled previews, UI widgets, and editor plugins or add backends to support different Git platform APIs.

Ghost is a platform dedicated to one thing: Publishing. It's beautifully designed, completely customisable and completely Open Source. Ghost allows you to write and publish your own blog, giving you the tools to make it easy and even fun to do.

It is a content management system (CMS) is software that allows customers to make updates and changes to their website without a web developer.

It is a flexible, feature-rich, free open-source content management platform that empowers hundreds of thousands of individuals and organizations around the world to easily manage their web site.

Pipeline tool for active dealmakers. Get super-organized. Close deals in less time. Built by active salespeople and serious web app developers.

It is a business management software including CRM, e-commerce, billing, accounting, manufacturing, warehouse, project management, and inventory management.

Online CRM software for managing your sales, marketing, customer support, and inventory in a single system.

The Intelligent Sales Productivity Platform - leveraging Big Data, mobility and real-time computing to give sales teams the tools they need to be successful.

It focuses mainly on sales, marketing, and service sectors, but Microsoft has been marketing it as a CRM platform and has been encouraging partners to use its proprietary framework to customize it.

It is the intuitive content management system and flexible framework loved by editors and developers alike. Equip your web teams to achieve outstanding results.

It is an open-source content management system for publishing content on the World Wide Web and intranets. It is designed for ease of use, for users with a minimum of technical skills. It enables users to edit site content directly from the page.

Let's say you're planning on managing content for a website, native app, and widget. Instead of using a CMS that's baked into the website client, it makes more sense to decouple your content entirely and access it through an API or SDK. That's a headless CMS. That's Directus.

Wagtail is a Django content management system built originally for the Royal College of Art and focused on flexibility and user experience.

It is customer service software that delivers in the cloud. It is a social customer service application that empowers companies to manage all customer information and service conversations in the cloud.

It is a Laravel-based CMS engineered for simplicity. It has a simple and intuitive interface. It provides a consistent structure with an emphasis on reusability so you can focus on building something unique while we handle the boring bits.

Craft is a content management system (CMS) that’s laser-focused on doing one thing really, really well: managing content.

It is a friendly open-source Content Management System and is one of the most widely used ASP.NET Content Management Systems. It is free and offers great flexibility and extensive capabilities.

It is a free and open-source Web content management system written in PHP. It can run on several web servers, such as Apache or IIS, on top of many operating systems, among them Linux, Microsoft Windows, FreeBSD, macOS and OS/2.

It is a free, open-source and self-hosted content management system (CMS) based on the PHP programming language and Symfony web application framework. It uses a flat file database for both backend and frontend. It is more widely used, and growing at a faster rate, than other leading flat-file CMS competitors.

It is a web-based client-server system for building, managing and deploying commercial websites and related services. It combines a number of infrastructure-level and application-level functions into a single integrated package.

It is a flexible, user-friendly CMS for creating custom digital experiences on the web and beyond. It is a WordPress alternative for development-oriented publishers who want deeper control and more powerful performance from their content management tools. It is built to be exceptionably scalable, and offers native features for complex content management relationships.

It is a fully customizable administrative area for your static websites. Use your favorite website generator, let your clients publish new content independently, host the site anywhere you like.

It is a simple Git-based CMS for Jekyll and Hugo sites. Built for devs who hate bloat. It helps developers manage a content-based system into their websites seamlessly and there's also the benefits of collaborating with teams while at it.

It is user friendly and has a very intuitive drag and drop interface. It's built around the needs of multi-lingual publishing by default. Its lightweight core makes it easy to integrate with other software and put to use immediately, while its ease of use makes it the go-to choice for content managers, content editors and website admins.

It is an api-based/headless CMS. Developers can define content-types and nested components to receive structured JSON and the editor can use a visual preview completely decoupled from the website itself. Its fields can fully be extended using Vue.js.

It is a simple to use and highly versatile Open Source wiki software that doesn't require a database. It has clean and readable syntax. The ease of maintenance, backup and integration makes it an administrator's favorite. Built in access controls and authentication connectors make it especially useful in the enterprise context and the large number of plugins contributed by its vibrant community allow for a broad range of use cases beyond a traditional wiki.

It is a free and open source content management system built on top of the Zope application server. Plone is positioned as an "Enterprise CMS" and is commonly used for intranets and as part of the web presence of large organizations

Keystone is the easiest way to build database-driven websites, applications and APIs in Node.js.

It is the first ECRM–an Ecommerce CRM designed for building personal and profitable relationships with your customers at scale. It uses customer insight, data, and smarter email marketing automation at scale. With the best customer experience, your brand will never blend in.

It is a powerful open source CMS that allows you to create professional websites and scalable web applications. The program specializes in back-office and front-office accessibility, and observes XHTML, HTML5 and CSS standards.

It brings together everything you need under one platform to manage your accounting, financials, operations, people & payroll.

Manage your sales, marketing, and customer support better with SugarCRM's online CRM software.

The open source, developer & designer-first, Laravel + Git powered CMS built to make managing websites easy with Git.

Streak lets you keep track of all your deals right from your inbox. We let you group emails from the same customer together into one view and push that customer through your pipeline.

ProcessWire is an open source content management system (CMS) and web application framework aimed at the needs of designers, developers and their clients. ProcessWire gives you more control over your fields, templates and markup than other platforms, and provides a powerful template system that works the way you do

It is an easy, powerful and affordable Customer Relationship Management (CRM) software. It has sales tracking, contact management, marketing automation, web analytics, two-way emails, telephony, and helpdesk with a simple, clean and modern interface.

It is an open source customer relationship management (CRM) solution that gives users highly actionable insights on which to base critical business decisions, actions, and strategies.

Close allows startups to close more deals and make more sales. Salespeople can spend more time communicating with their customers and less time on data entry because all activities are automatically tracked.

Twill is an open source CMS toolkit for Laravel that helps developers rapidly create a custom admin console that is intuitive, powerful and flexible.

Dex is a personal CRM that helps you build stronger relationships. Remember where you left off, keep in touch, and be more thoughtful -- all in one place.

It helps businesses across different industry verticals to manage their interactions with existing and potential customers. Key features include one-click phone, sales lead tracking, sales management, even tracking and more.

It is a global software company offering web content management, digital commerce, and digital marketing, through the Episerver Digital Experience Cloud software platform.

Web based ERP and CRM Open Source software package to manage a professional or foundation activity (sme, freelancers): invoices, products, contacts, agenda, commercial proposals, orders, stocks, emailings.