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Open Source Membership Management Software (2026)
Last updated: March 2026
4 software options
Sponsored
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Open-source AMS for NGOs and the association's market
*No long-term contracts. No per User pricing. No per Admin pricing. No additional Processing Fees. Free open source software code is on GitHub. Unlimited contacts, supports large organizations 15,000+ members. Tendenci is the strongest and most secure web-based software platform for NPO’s globally. *Monthly hosting charges are based on the amount of processing power you need to efficiently manage your membership. This is a monthly charge with no long-term contracts. *YOUR website! That is the power of Open Source. *There is a one-time development charge to set up your Tendenci site based on the graphical and customization requests from your organization. *Training is provided as part of the initial development charge. Use our free online support to find answers to your questions or contact our Helpdesk for hourly paid support and development. *Demo the software now for free!
Read more about Tendenci
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Open-source membership management solution
Comes with installation of Joomla Component with 1 year updates.
Read more about My Member Software
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Open source & customizable membership plugin for WordPress
100% open source and free forever. Premium plans include access to Add Ons and extensions, automatic premium plugin updates, and unlimited advanced technical support.
Read more about Paid Memberships Pro
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Open source CRM for nonprofit and civic sector
the basic plan is $10, the standard is $25, and the pro plan is $50 a month, with each one sequentially suited for larger organizations.
Read more about CiviCRM