The best free alternative to HumHub is Mastodon, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to HumHub and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to HumHub are Bitrix24, BuddyPress, Whaller and Redbooth.
Decentralized and federated social platform with no ads, focusing on personal interaction, and offering 500 character posts, custom emojis, content warnings, and robust moderation tools.
Replace a multitude of services and apps with a single ecosystem for your business to work in. Explore the tools of Bitrix24.
Social networking in a box. Build a social network for your company, school, sports team or niche community all based on the power and flexibility of WordPress. Install BuddyPress directly through your WordPress dashboard plugins page, or download it manually from the WordPress.
Redbooth (formerly Teambox), the cloud-based company redefining collaboration and business communications. Easily organize teams and projects to ensure visibility and accountability, enabling your team to get more accomplished.
identi.ca is a free personal web server that implements a distributed social networking service. It is based on pump.io, a free software which make up the distributed social network.
Alfresco is the leading open source enterprise content management system built by the most experienced team in the industry drawn from Documentum®, Vignette® and Interwoven®. Twenty years of experience drove us to believe that the Enterprise Content Management...
eXo Platform is an all-in-one digital workplace solution that helps you connect, align and engage your teams around a single interface. You can use it to improve company and peer-to-peer communication, boost collaboration and manage company knowledge.
Discover comprehensive project management with Teamcamp. It offers real-time collaboration, task tracking, invoicing, centralized storage, and workflow automation. Manage multiple workspaces effortlessly, ensuring seamless project coordination and financial management, ideal for global enterprises.
Founded in 2007, MangoSpring transforms the way teams work together. The company's suite of social collaboration applications enable businesses to improve productivity and execution. Over 3,000 businesses and departments within enterprises in a wide range of industries...
Open Social is a purpose-built community engagement platform. Developed on top of a powerful open-source Drupal technology framework, Open Social allows organizations to create a central online hub for their members.
Liferay Portal is an enterprise web platform for building business solutions that deliver immediate results and long-term value.
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Exactly the same features : share notes, tasks, calendar, polls... So it's very similar.