Effektiv Spenden is a non-profit donation platform based in Germany, founded in early 2019 by Sebastian Schwiecker. The platform connects donors with highly effective projects in areas such as global health, animal welfare, and climate change, all endorsed by the effective altruism community. It operates under UES - gemeinnützige GmbH für effektives Spenden and has a registered entity in Basel, Switzerland.

The platform allows donors in Germany to support featured organizations or to have their donations allocated optimally. It provides tax receipts, facilitates employer matching of donations, and manages donation regranting to ensure funds reach impactful charities. Effektiv Spenden emphasizes transparency by regularly reporting on its finances and impact, and it has received significant funding support to sustain its operations. The platform aims to empower the effective altruism community in German-speaking regions by making effective giving accessible and straightforward.