What is Zeffy?

Zeffy is the only 100% free fundraising software for nonprofits.

Zeffy, a registered B Corp™, is the only 100% free fundraising software for nonprofits. Too many nonprofits can't access modern technology because their budget just won’t allow it. We believe your mission deserves more. We are focused on developing the best online fundraising platform, and offering it for free so that every nonprofit can focus on maximizing its impact. 

See why our users rated Zeffy (formerly Simplyk) as one of the best fundraising platforms for nonprofits here

What can I do with Zeffy?

We offer all the following tools to help you raise for your cause, organize events or manage your donors.

icons-donors   Donations

In our fundraising section, you can create and share beautiful donation forms or donation campaigns, giving your donors an efficient and intuitive way to give to your cause. 

icons-ticketing   Events

In your fundraising sections, you can create events and sell more tickets for your next fundraising event. With our frictionless ticketing forms, you can easily manage all your in-person, virtual, and hybrid events.

   Peer-to-peer campaigns

Take your fundraising to the next level by creating a peer-to-peer campaign. Make it easy for your community to participate in your fundraising efforts.


Make it easy for your supporters to register as a member of your cause and renew their membership automatically.

   Donor Management

Our donor management and CRM features allow you to engage with your donors in a personalized way.