A web direct message application should be fast, secure, and user-friendly. It must include real-time messaging, read receipts, media sharing (images, videos, documents), notifications, and group chats as core features. Strong encryption (E2EE) and user privacy should be a top priority. The interface should be simple and intuitive, offering dark/light mode and other customization options. Mobile responsiveness, fast loading times, and low data consumption are also crucial factors.
