Most popular social networks worldwide Ranked by number of self-claimed active users (in billions): Facebook 2.9 YouTube 2.5 WhatsApp 2 Instagram 1.5 WeChat 1.3 TikTok 1 Douyin 0.6 QQ 0.6 Snapchat 0.5 Telegram 0.5 Pinterest 0.4 Twitter 0.4 Reddit 0.4 Quora 0.3 LinkedIn 0.2#facebook