Change.org is a website which allows users to create and sign petitions in an attempt to advance various social causes by raising awareness and influencing decision-makers. The site is a US-based for-profit company and claims to have 583 million users as of May 2026. Petitions often focus on causes such as general justice, economic justice, criminal justice, human rights, education, environmental protection, animal rights, cyber bullying, health, religious freedom, and sustainable food.