PWABuilder - Formerly Manifoldjs, the simplest way to create progressive web apps across platforms and devices
Fluid - Turn Your Favorite Web Apps into Real Mac Apps.
Progressier - The No-Code Progressive Web App Toolset. Add PWA installation, offline capabilities, caching strategies, push notifications to your web app or website. No code to write.
WebCatalog - Run your favorite web apps natively
Pep - Instantly turn your website into a Progressive Web App (PWA)
Web2Desk - Web2Desk is a tool to convert your favorite websites to Desktop app in just one click.