Online public welfare refers to a kind of charity activity carried out through the Internet platform. It aims to benefit more people and contribute to society through the spread and sharing of the Internet. Online public welfare usually includes the following forms: 1. Donation platform: Many online public welfare platforms provide donation functions. Through these platforms, users can donate funds or items to charitable organizations or organizations to help people in need. 2. Public welfare activities: Online public welfare platforms usually provide information and resources for public welfare activities. Through these platforms, users can participate in various public welfare activities such as charity sales, charity performances, material assistance, etc. 3. Social media: Many online public welfare platforms also use social media for publicity and interaction. Through these platforms, users can share information about public welfare activities with more people and call for more people to participate. Online public welfare is a way to achieve charity activities through the network platform. It is convenient, efficient, and extensive. It can help more people participate in charity.