Multiply your impact
About Tzedakah Multiplier
"Someone who saves a single life,~ Talmud
it is as if they saved the entire world."
How it works
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Select your favorite Jewish charity
This can be any charity that you care about.
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Select a super-effective charity
You can choose from our list of expert recommendations.
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Divide your donation between the two
At least 10% has to go to a super-effective charity.
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We'll add 9% to 90% on top of your donations:
our crowdsourced matching pool adds a proportion on top, so the total is always greater than what you donate. Learn more here.
Why donate with Tzedakah Multiplier?
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Effective
Our goal is to make charitable giving as effective as possible. We support charities that experts have identified as super effective.
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Matching
We'll add a small donation on top of yours from our crowdsourced matching pool. The more you give to the super-effective charity, the higher the rate.
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Secure
Your donations are processed by our trusted partner every.org — a non-profit hub for charitable giving. Your data privacy is ensured.
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Verified
As a project based at Harvard University, Tzedakah Multiplier has been reviewed by the Harvard internal review board and data safety team.
Don’t want to make a donation right now?
If you prefer making your donations at the end of the year, we can remind you later about Tzedakah Multiplier.
Media coverage
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"For Giving Tuesday, this Harvard-designed donation tool helps you maximize your impact"
- Best New Ideas in Money -
Giving Multiplier is an award winner of the Reimagine Charitable Giving Challenge that honors "promising concepts in the digital giving space"
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"The next time you’re ready to give, make two donations: one to a charity that speaks to your heart and one to a charity that’s expert-certified for extraordinary impact."
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"I appreciate Giving Multipliers's incrementalist approach to helping people make more effective charitable giving decisions."
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"If even just a quarter of all donors applied this strategy, millions of lives would be saved and improved - without donors having to forsake the charities closest to their hearts."
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"Giving Multiplier, an online platform that eases — and sweetens — donations to global health and development charities"
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"The researchers were able to effect real-world changes in donors’ behavior by offering them the chance to give with their heads as well as their hearts."
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Why Giving Money to Others Makes us Happier by The Happiness Lab with Dr. Laurie Santos
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Joshua Greene on Morality, Psychology, and Trolley Problems by Sean Carroll's Mindscape Podcast
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The Power of Altruism: How Effective Altruism is a Giving Multiplier by Passion Struck Podcast with John R. Miles
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Moral Psychology & Pragmatism by The Nature & Nurture Podcast
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Cooperation, Charity, and Effective Giving by The Stanford Psychology Podcast
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Moral Tribes: Bridging the gap between "us" and "them" by Giving What We Can
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Morality Meets World by On Wisdom
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Under the Radar with Callie Crossley
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Clearer Thinking with Spencer Greenberg