Synpress is an end-to-end testing framework for web applications based on Cypress and Playwright, with support for MetaMask. It is a pioneering tool in web3 end-to-end testing with the potential to evolve into a decentralized network of test runners and continuous integration providers in the future. Synpress is easy to use, fully tested, and includes features such as MetaMask support, headless mode, integrated video recording, and many more. It is also blazingly-fast and extensible, with the ability to add custom commands and plugins. Synpress is already used by several open-source repositories.