FREEDOM251

Freedom251 › Membership Billing Software

MemberMatters

by MemberMatters

Paid LinuxSelf-hostedWeb

Visit MemberMatters Alternatives

MemberMatters's own site

What MemberMatters is

MemberMatters is an open-source membership, billing, payments and access-control system for makerspaces and community groups. Organizations host their own instance on Linux using Docker, with a mounted volume for the database and other data. Members can register, sign in, manage profiles and pay recurring membership charges by credit card through Stripe. They can also use self-service billing; administrators can activate accounts manually for members without a Stripe subscription. An admin interface provides tools to manage the system.

For physical access, MemberMatters offers permission checks, swipe audit logs and automatic swipe-card deactivation when payments are overdue. Its firmware supports ESP32 devices and connections to RFID readers, door strikes and tool interlocks. Listed integrations include Canvas or Moodle, Trello, SendGrid or Postmark, Twilio and Discord. Single sign-on supports OIDC and the Discourse protocol. The project describes support for major browsers, mobile use and dark mode. Organizations can build an Electron kiosk app for site sign-in and sign-out, but the project does not provide precompiled kiosk binaries. Production deployments should use HTTPS behind a reverse proxy. A valid Postmark API key is required for the software to function correctly, including signups and MemberBucks actions.

Who it suits

MemberMatters suits makerspaces and community groups that want to manage member accounts, recurring billing and physical access in a self-hosted system. It may also fit organizations that use ESP32 access hardware or need integrations such as Discord, Trello or Canvas or Moodle.

What it does well

  • Open-source software under the MIT license.
  • Supports recurring Stripe card payments and self-service billing.
  • Manual account activation is available without a Stripe subscription.
  • Access tools include swipe logs and overdue-payment card deactivation.
  • Single sign-on supports OIDC and the Discourse protocol.
  • Works with ESP32 devices, RFID readers and access-control outputs.

What to know first

  • Organizations must host and maintain their own instance.
  • A valid Postmark API key is required for correct operation.
  • The Electron kiosk app has no precompiled download.
  • Production deployment should use HTTPS behind a reverse proxy.

Limits

The software requires a valid Postmark API key, including for signups and MemberBucks actions. The Electron kiosk app can be built, but precompiled binaries are not offered for download.

Getting started

  1. Open the MemberMatters project website on GitHub.
  2. Prepare a Linux host and run the Docker image.
  3. Mount a volume for the database and other data.
  4. Configure a valid Postmark API key.
  5. Set up production access behind a reverse proxy using HTTPS.

Verdict

Choose MemberMatters if your makerspace or community group wants open-source membership management with recurring Stripe billing and physical access controls. Look elsewhere if you need a hosted service or precompiled kiosk binaries; organizations run their own instance and must build the kiosk app.

Questions

How much does MemberMatters cost?

The listed pricing model is free, and the project is open source.

What platforms does it support?

The listed platforms are Linux, self-hosted and web. The project says it supports major browsers, mobile use and dark mode.

Is MemberMatters open source?

Yes. The GitHub repository lists it under the MIT license.

How is it deployed?

Organizations run their own instance using a Docker image on Linux and mount a volume for the database and other data.

What integrations and sign-in options are available?

Listed integrations include Stripe, Canvas or Moodle, Trello, SendGrid or Postmark, Twilio and Discord. Single sign-on supports OIDC and the Discourse protocol.

Can it handle physical access and kiosk sign-in?

Its firmware supports ESP32 devices, RFID readers and outputs such as door strikes or tool interlocks. An Electron kiosk app can be built for site sign-in and sign-out, but precompiled binaries are not available.

Facts from MemberMatters's own pages

Access control
Its access control features include permission checks, swipe audit logs, and automatic swipe card deactivation for overdue payments. · github.com, 11 Oct 2026
Access hardware
Its access control firmware supports ESP32 devices and can connect to RFID readers and outputs such as door strikes or tool interlocks. · github.com, 11 Oct 2026
Browser and mobile support
The project says it supports major browsers, mobile use and dark mode. · github.com, 11 Oct 2026
Deployment
The documentation says MemberMatters supports running in Docker on Linux and provides a Docker image to download. · membermatters.org, 11 Oct 2026
Email requirement
A valid Postmark API key is required for MemberMatters to function correctly, including signups and MemberBucks actions. · membermatters.org, 11 Oct 2026
Headquarters
Brisbane, Australia · github.com, 28 Sept 2026
Hosting model
Organizations run their own instance using a Docker image and mount a volume for the database and other data. · membermatters.org, 11 Oct 2026
Integrations
The project lists integrations with Stripe, Canvas or Moodle, Trello, SendGrid or Postmark, Twilio and Discord. · github.com, 11 Oct 2026
Intended users
The project lists makerspaces and community groups as its intended users and names several makerspaces that use or trial it. · github.com, 11 Oct 2026
Kiosk
A kiosk mode can be built as an Electron app, but the project says it does not offer precompiled binaries for download. · membermatters.org, 11 Oct 2026
Kiosk mode
An Electron kiosk app can be built for site sign-in and sign-out, but the project says it does not offer precompiled binaries for download. · membermatters.org, 11 Oct 2026
License
The GitHub repository lists the project under the MIT license. · github.com, 11 Oct 2026
Member accounts
It supports member registration, login and profiles, with an admin interface for managing the system. · github.com, 11 Oct 2026
Member management
It includes member registration, login, profiles, and an admin interface for managing the system. · github.com, 11 Oct 2026
Membership billing
It supports recurring credit card membership payments through Stripe, self-service billing, and manual account activation for members without a Stripe subscription. · github.com, 11 Oct 2026
Messaging
It integrates with SendGrid or Postmark for email and Twilio for SMS notifications. · github.com, 11 Oct 2026
Payments
It supports recurring credit card membership payments through Stripe and self-service billing for members. · github.com, 11 Oct 2026
Purpose
MemberMatters is an open source membership, billing, access control and payments solution for makerspaces and community groups. · github.com, 11 Oct 2026
Security
The deployment guide recommends putting the instance behind a reverse proxy and says production use should always use HTTPS. · membermatters.org, 11 Oct 2026
Security reporting
The security policy asks users to report vulnerabilities privately by email and lists version 2.x as supported and version 1.x as unsupported. · github.com, 11 Oct 2026
Security setup
The documentation says production instances should run behind HTTPS and describes using a reverse proxy. · membermatters.org, 11 Oct 2026
Single sign-on
It provides single sign-on support for OIDC and the Discourse protocol. · github.com, 11 Oct 2026
Subscription billing
recurring · github.com, 20 Sept 2026
Support
The README says the project focuses limited resources on features and bug fixes and invites users to open an issue with suggestions. · github.com, 11 Oct 2026

Where MemberMatters stands on Freedom251

Look at these too