Running a nonprofit event is part logistics, part storytelling, and part fundraising strategy. Whether you are hosting a gala, charity run, donor luncheon, virtual auction, or volunteer orientation, the right registration software can help you sell tickets, collect donations, track attendees, and follow up with supporters without drowning in spreadsheets.

TLDR: The best event registration software for nonprofits combines easy signups, donation collection, and donor data management. Tools like Givebutter, Classy, Donorbox, Zeffy, Eventbrite, OneCause, and Bloomerang each serve different event needs and budgets. Choose based on your event type, fundraising goals, payment fees, CRM needs, and how much automation your team wants.

What Nonprofits Should Look for in Event Registration Software

Before comparing platforms, it helps to know what actually matters. A nonprofit event tool should do more than collect names. Ideally, it should help you turn attendees into long-term supporters.

• Simple registration forms: Guests should be able to register or buy tickets in minutes.
• Donation options: The platform should make it easy to add a gift during checkout.
• Ticketing flexibility: Look for free tickets, paid tickets, VIP levels, tables, sponsorships, and promo codes.
• Payment processing: Review transaction fees carefully, especially for high-volume events.
• Donor management: Integration with a CRM or built-in donor records can save hours later.
• Event communication: Automated confirmations, reminders, and thank-you emails are essential.
• Reporting: Your team should be able to track attendance, revenue, donations, and engagement.

1. Givebutter

Best for: Nonprofits that want an all-in-one fundraising and event platform with modern donation tools.

Givebutter is popular with small and midsize nonprofits because it combines event registration, ticketing, donation forms, peer-to-peer fundraising, auctions, and donor management in one approachable platform. You can create a branded event page, sell tickets, add donation prompts, and let supporters fundraise on your behalf.

One of Givebutter’s strongest features is its donor-friendly checkout experience. Attendees can easily add an extra contribution while registering, which can increase total revenue without adding complexity. It also supports team fundraising, recurring donations, and automated receipts.

Consider it if: You want a flexible platform for galas, campaigns, community events, and online fundraising without stitching together multiple tools.

2. Classy

Best for: Larger nonprofits and growing organizations that need polished, campaign-driven event fundraising.

Classy is a robust fundraising platform designed specifically for nonprofits. Its event tools support ticketed events, peer-to-peer campaigns, endurance events, virtual experiences, and fundraising pages. It is especially strong for organizations that run large campaigns and need a professional donor experience.

The platform offers custom branding, detailed reporting, recurring donation options, and integrations with CRMs and marketing tools. For nonprofits with established fundraising programs, Classy can help create a cohesive experience across events, appeals, and donor journeys.

Consider it if: Your nonprofit hosts major fundraising events and needs advanced customization, analytics, and integrations.

3. Donorbox Events

Best for: Nonprofits that want straightforward ticketing connected to donation tools.

Donorbox is widely known for donation forms, but its event ticketing features make it a useful option for nonprofits hosting workshops, charity dinners, concerts, conferences, and community gatherings. You can create ticket tiers, set quantities, collect attendee details, and offer supporters the chance to donate during registration.

Because Donorbox also supports recurring donations, crowdfunding, memberships, and donor records, it works well for organizations that want event registration to connect naturally with broader fundraising. The interface is clean, making it practical for teams without a dedicated tech staff.

Consider it if: You need reliable ticketing and donation collection with a relatively simple setup process.

4. Zeffy

Best for: Budget-conscious nonprofits looking for fee-free event registration and donations.

Zeffy has gained attention because it offers nonprofit fundraising tools without mandatory platform fees. It supports ticketing, donation forms, raffles, peer-to-peer fundraising, auctions, and donor management. For smaller nonprofits watching every dollar, that pricing model can be very attractive.

With Zeffy, you can create event pages, sell tickets, collect additional donations, and manage attendee information. The platform asks donors if they want to contribute toward Zeffy’s operating costs, which helps keep core features free for nonprofits.

Consider it if: Your organization needs affordable event tools and wants to minimize software costs while still collecting donations online.

5. Eventbrite

Best for: Nonprofits that want broad event visibility and easy public registration.

Eventbrite is one of the most recognizable event registration platforms, and its familiarity can be a benefit. Many attendees already know how to use it, which lowers friction. Nonprofits can create event pages, offer free or paid tickets, manage attendee lists, and promote events through Eventbrite’s marketplace.

While Eventbrite is not built exclusively for nonprofits, it is useful for awareness events, classes, community fundraisers, benefit performances, and public gatherings. Donation collection is available, though donor management features are not as nonprofit-specific as some other platforms.

Consider it if: Your priority is simple ticketing, visibility, and quick registration for public-facing events.

6. OneCause

Best for: Fundraising events with auctions, mobile bidding, raffles, and live giving.

OneCause is a strong choice for nonprofits that host galas, auctions, golf outings, and other fundraising-heavy events. It offers event registration, ticketing, table management, mobile bidding, online auctions, text-to-give, and live donation tools.

What makes OneCause stand out is its focus on maximizing giving during the event itself. Guests can bid from their phones, make donations in the moment, and participate in fundraising activities with less friction. For teams running high-touch events, these features can significantly improve revenue and guest engagement.

Consider it if: Your nonprofit relies on auctions, paddle raises, sponsorships, or major in-person fundraising events.

7. Bloomerang

Best for: Nonprofits that want event registration connected to donor retention.

Bloomerang is best known as a nonprofit CRM, but its event and fundraising capabilities make it valuable for organizations that want every registration to strengthen donor relationships. Instead of treating events as isolated activities, Bloomerang helps teams track attendee history, giving behavior, engagement, and follow-up actions.

This is especially useful after an event. You can segment attendees, identify first-time donors, send personalized thank-you messages, and plan future outreach. While dedicated event platforms may offer more advanced ticketing features, Bloomerang shines when donor stewardship is the main priority.

Consider it if: You want event data to feed directly into long-term donor cultivation and retention efforts.

How to Choose the Right Platform

The “best” software depends on your event strategy. A small nonprofit hosting a community breakfast may need simple ticketing and low fees, while a national organization running a peer-to-peer race may need advanced fundraising pages, CRM integrations, and analytics.

Ask these questions before deciding:

• What type of events do we host most often? Galas, webinars, races, workshops, auctions, and donor briefings all have different needs.
• Do we need built-in fundraising? If donations are central to the event, choose a platform with strong giving tools.
• How important is donor data? If retention matters, prioritize CRM features or integrations.
• What fees can we afford? Compare platform fees, payment processing fees, and optional donor tipping models.
• Will volunteers or staff manage the tool? Ease of use can be just as important as advanced features.

Final Thoughts

Event registration software can do much more than organize check-ins. For nonprofits, it can become a bridge between attendance and advocacy, ticket sales and donations, one-time participation and long-term support.

If you want a versatile fundraising platform, Givebutter or Classy may be a strong fit. If budget is the biggest concern, Zeffy is worth exploring. For auctions and live fundraising, OneCause stands out. For donor-centered follow-up, Bloomerang is especially useful.

The right choice is the one that makes life easier for your team while creating a smooth, inspiring experience for supporters. When registration is simple and giving feels natural, your events can become more than gatherings—they can become powerful engines for your mission.