nohistory.chat - nohistory.chat - free, anonymous and disposable web chat.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Discord Chat Exporter - Discord Chat Exporter is a useful and open source solution that makes it easy for you to export Discord message history from any channel and then view it offline.
Facebook Messenger - Facebook Messenger is a faster way to message.
Discord History Tracker - Discord History Tracker is a great tool that enables you to select chat history and save it in your private conversations, servers, groups, and then view it anytime without needing an internet connection.
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.