Tendenci Open Source


Tendenci is the first Open Source Association Management Software to give non-profits and associations a real choice for affordable website and member engagement.

Tendenci is built on modern technology, with out-of-the-box tools like Donor Management, Memberships, Event Registration, plus MOOC and LMS integrations. Everything you need for a secure online success. No per user or admin fees. No gimmicks!


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Streamline Your Association Management Software (AMS)

Mix and Match from our App Platform, included in every Tendenci Site

Membership Management

Auto-renewals, Notifications, Reporting

Tendenci's Membership Module (MMS) allows you to manage member sign ups and renewals, member types and groups, member directories, and custom tiered permissions as needed - all online through your Tendenci website.
Your leadership. Your association. Your MMS.

Content Management

Non-technical Interface, 100% Data Access

Tendenci Content Management Software (CMS) gives you the resources to manage and organize your website content without having to know HTML or other complicated programming tools. That's the power of Open Source.
Easily add and edit pages, articles, news, stories, photo albums, and more using an Intelligent CMS.

Community Forums

Public/Private, Post Notifications

Tendenci Online Community forums provide the perfect spot for your members to ask questions and get answers from their peers. Use a combination of public and private forums to facilitate the exchange of ideas.
Start the conversation today with Online Forums.

Association Report Writer

Memberships, Analytics, Custom Reports

Tendenci makes analyzing your membership information a snap. With a full suite of reports covering Memberships, Events, Invoicing, Donors and more, you can easily access the information you need. Reports can be printed or exported for use in another program.
With Tendenci's open source access, you can use SQL Explorer to view all database tables and fields. Then build any report you want, at any time, using the Custom Report Writer.

Website Builder

100% Customization, Complete Access

Build the site you want with Tendenci. As an Open Source option, you have full control over both the look and functionality of your site. Use the non-technical interface for items such as the Nav Builder. Access the Theme Editor for direct access to the code for adjustments at a more technical level.
Want to go even further? Pull down root templates and customize the functionality of the Tendenci software for the results you want! Launch your site today and step into the role of Web Developer.

Feature Requests

User Suggestions, Developer Community

Tendenci has evolved over the years by listening to you. Our community has guided the development of new features based on real-life use of the Tendenci software for Membership Managment.
The Tendenci Developer Community is a global network of contributors that are adding new features all the time. Do you have a request that would benefit your organization and others using Tendenci? Post it now on our online Discussion Board.

Event Management

Calendars, Registrations, Tiered Pricing

Create a new event in minutes directly from your Tendenci website with our integrated events calendar module. Add all the event details including location and directions, speaker bios, multiple ticket pricing, images, sponsors on a single page online.
Track registrations and payments, send reminders and print rosters for the event check-in. No more third-party platforms that charge additional fees. Promote and manage your events inhouse by using the feature-rich Event Calendar.

Photo + Video Galleries

Photo Albums, Bulk Upload, Video Feeds

Rich Media is a powerful way to tell your organization's story by visually showing the donors, members, community partners, and events of your organization.
Tendenci - The Open Source AMS includes a complete digital media management package to organize, collect, and share photos, videos, and documents on your website securely and neatly. Don't send your members to a third-party photo site. Promote your organization with your own Online Photos.

Job Banks

Paid Listings, Public/Private, Resumes

Use Tendenci's Job Bank module as both a membership benefit and a revenue stream for your organization. Employers can register and pay online to list a job in your job bank, adding another source of income for your programs. Allow members to post jobs for free or at reduced rates.
Job Boards can be public or private for exclusive member-only access. Provide a powerful resource for your members seeking Job Placement.


No Cost, List Management, Templates

Tendenci's newsletter builder allows you to automatically pull content such as recent posts and upcoming events from your site to your custom Newsletter template. Manage your lists, including one-click opt-in, opt-out features, within your own site with no importing/exporting.
Eliminate the hassle and expense of a third-party newsletter program! Proactively reach your members and share the latest News Update.

Responsive Design

Forms, Members, 100% Responsive

At Tendenci, we believe that every part of your site should be openly mobile-responsive. Build a beautiful layout in Tendenci or drop your own custom theme on top of the software and see how seamlessly the functional parts of your site display across all devices. Go mobile-friendly with your Responsive Website.

International Community

Languages, Currencies, Transifex

The Tendenci community encompasses countries around the world. It's one of the benefits of being open source! To support all Tendenci users, content can be entered in any language. Change currency displays to match your location and process transactions with your merchant account.
Tendenci is Open and also uses the crowdsourcing site of Transifex to work on specific software translation. One world. It's time to Go International.

Donate Online

Custom Forms, Recurring Donations

Tendenci’s Donations Module simplifies managing your donations and fundraising for your non-profit or professional association.
With Tendenci Open Source software, you can accept donations and sponsorship payments online, organize and track your donations and automatically generate invoices and reports – all inside one easy-to-use software platform. Make it easy for your community to provide support with Online Donations.

Business Directories

Managed Listings, Paid/Member Options

Tendenci online Business Directories allow you to showcase your sponsors or preferred partners on your website. Publicize your partners with either paid or promotional listings, including optional preferred status listings and inclusion in other feeds through your site. Business Directories can be organized by category and subcategory, include graphic logos and search engine friendly descriptions, and link directly to your business partner's website.
Generate revenue for your organization or provide value to sponsors and partners by hosting Online Directories.

Blog with News + Articles

Multiple Feeds, Custom Views

Add blog posts, press releases and industry articles to your site to keep your members informed. Tendenci's customizable displays allow you to determine both the content and formatting of your news feeds and individual item views. Panels, lists, photos, etc. It's your choice! Share knowledge and information with your community using Online News.

Marketing + SEO

Built-in Support, Individual Page SEO

We recognize the importance of good SEO and have added features to the Tendenci Open Source software to help with your organic listings. Including your primary and secondary keywords throughout your site and creating page titles that rank well are just two examples of how Tendenci helps you achieve results.
Individual pages can be customized to increase optimization based on your specific marketing campaigns. Beef up your site content for better placement in the Search Engines.

Pay Online

Easy Integration, No Additional Fees

Integrate your merchant account with your Tendenci website and accept online payments for membership join and renewal, event registration and add-ons, product purchase, donations, job listings, business directory listings and simple one-time payments. With no extra processing fees.
Enter offline payments upon receipt to keep your invoicing reports accurate. Your Tendenci AMS can accept, organize, and report on your members' online Payments.

Design Templates

Themes, Code Snippets, Options

Use one of our pre-built themes to jumpstart development of your new site. All themes are 100% customizable for your exact needs. Tendenci is built using Bootstrap3 so other themes built using this popular structure can be implemented too!
A code snippet library maintained on GitHub provides a quick resource for customizing your data displays. Expedite the build of your Tendenci site with our well-documented Themes.

Responsive Design for a Seamless User Experience

View on Mobile, Tablet, and Desktop

Written specifically for the NPO and Association Management Software market, Tendenci - The Open Source AMS has continued to grow and adapt to meet the specific needs of these groups. From building on an open source framework that allows complete freedom – to mobile responsive software design – to online forums and newsletter features that keep the community involved, Tendenci continues to invest in the NPO sector.

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Tendenci Open Source Association Management Software (AMS) News Update

  • AIC Geneva's Online Reinvention Boosts Member Engagement and Enhances the Admin & User Experience | Tendenci AMS - Open Source AMS

    AIC Geneva's Online Reinvention Boosts Member Engagement and Enhances the Admin & User Experience | Tendenci AMS

    AIC Geneva recently revamped their website using Tendenci, the open-source Association Management System (AMS) designed for nonprofits and associations. Their 70th-anniversary rebranding served as inspiration for the redesign, aiming to enhance member engagement. Tendenci's customization and automation features facilitated streamlined content updates and event registration. Support from the TendenciDev (the creative team behind the software) ensured a successful transition. Learn more about their journey!🤓🩵🐾

  • All of Your Ideas are Possible with Tendenci Open Source AMS - Open Source AMS

    All of Your Ideas are Possible with Tendenci Open Source AMS

    Yes, it is true, all of your ideas are possible with Tendenci! For instance, let's consider our recent friends, the Library Association of Alberta (LAA), who successfully developed their own Tendenci site with ease! We embrace a wide range of customers who approach us with their needs and ideas. Perhaps you are a new association collaborating with your own local developers and wish to test the software and eventually host with us? Of course, why not?! You should be in control of your software, not the other way around.

  • Association Auto Renewal Membership Plans - Open Source AMS

    Association Auto Renewal Membership Plans

    The post by Deirdre Reid on ReviewMyAMS discusses the significance of auto-renewal membership plans for associations, emphasizing the importance of providing convenience to members while delivering value. The message aligns with the goals of Tendenci, a software company that supports these membership models. They stress the need for proactive engagement with members and the customization of notifications throughout their membership journey, highlighting the importance of marketing automation. Tendenci believes that auto-renewal is a fundamental feature for association management software, offering tools for recurring payments. However, the responsibility for delivering value and communicating it to members rests with the association's board. …

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