UniPayGateway - Ultimate payment gateway software for merchants, ISOs and PSPs. Full range of payment gateway capabilities. Functionality rich open source payment system.
Fundraise Up - The New Standard for Online Giving
Tap2Pay - Tap2Pay is the platform for accepting online payments in all online channels: a website, social media (Facebook, Instagram, Youtube), messengers (Facebook, Telegram, Viber). It provides smooth and secure, omnichannel buying.
SwearJar - A Slack bot that donates money to charity when you curse
PayKun - Power your online business in India with PayKun payment gateway, start accepting payments via all debit/credit cards, net bankings, upi, payment links, invoices
GoFundMe - GoFundMe is a crowd-funding platform for fundraising one or multiple goals.