Chat Stats is a Telegram bot that provides detailed statistics for your chats and groups, including message counts, conversation starters, reply times, activity heatmaps, streaks, top words, emojis, voice minutes, and reactions. It allows word searches, chat comparisons, and sharing results as images. All data is analyzed locally on your device with open-source code on GitHub. The bot supports Telegram Desktop exports, requires no login, and is free in English and Russian.