Neutralino is a lightweight application development framework. It lets you develop desktop apps, cloud apps and even browser based apps. Application development with Electron and NWjs requires Nodejs and hundreds of Javascript libraries to be installed and special data files for the bundling will be downloaded at deployment and also the application output is large due to embedded chromium browser and Node runtime. NeutralinoJs will give developers portable lightweight SDK for cross platform application development and it reduces the application output to a smaller size by replacing embedded chromium with user’s default browser/web browser component and Node Js runtime with lightweight multi-threaded API server.