The latest articles on DEV Community by Razan (@razan-159). https://dev.to/razan-159 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4163769%2F26c3f67e-78b2-440b-bc04-f967b410436e.png https://dev.to/razan-159 en Razan Mon, 05 Oct 2026 11:50:50 +0000 https://dev.to/razan-159/i-built-an-open-source-end-to-end-encrypted-messaging-web-app-using-supabase-and-webrtc-4n57 https://dev.to/razan-159/i-built-an-open-source-end-to-end-encrypted-messaging-web-app-using-supabase-and-webrtc-4n57 <p>Hi everyone! </p> <p>My co-maker and I wanted to build a completely private messaging app that works instantly in the browser without any app store downloads. We just went live with the first version of <strong>Ripple Chat</strong>!</p> <p>We built this fully as a Progressive Web App (PWA) so you can install it straight to your phone's home screen like a real app.</p> <h3> 🚀 Key Features </h3> <ul> <li> <strong>True Zero-Knowledge Privacy:</strong> Client-side encryption using ECDH P-256 + AES-GCM. Your private keys never leave your browser context.</li> <li> <strong>Rich Messaging:</strong> Real-time messaging, typing indicators, emoji reactions, voice notes, and 100MB file attachments.</li> <li> <strong>Voice &amp; Video Calling:</strong> 1:1 voice and video calls powered by a peer-to-peer WebRTC framework.</li> <li> <strong>No Firebase:</strong> Fully powered by Supabase Realtime and secure signed URLs for media storage.</li> </ul> <h3> 🔗 Try It Out! </h3> <p>The project is completely free and open-source. We would love for the developer community to test it, break it, and give us honest technical feedback!</p> <ul> <li> <strong>Live App Link:</strong> <a href="https://ripple-bloom-chat.lovable.app" rel="noopener noreferrer">https://ripple-bloom-chat.lovable.app</a> </li> <li> <strong>Product Hunt Page:</strong> <a href="https://www.producthunt.com/products/ripple-chat-simple-private-messaging?utm_source=other&amp;utm_medium=social" rel="noopener noreferrer">https://www.producthunt.com/products/ripple-chat-simple-private-messaging?utm_source=other&amp;utm_medium=social</a> </li> </ul> <p>Let me know what you think about our security choices or architecture in the comments below!</p> webdev opensource javascript security