<3 is a popular social media slang you can find on many social media platforms. <3 resembles a heart which usually means “love”. In other words, <3 means love on social media.
If you want to show love for someone in texting on social media platforms, you can use <3 on Facebook, twitter, WhatsApp, Instagram, Snapcash, and TikTok.
Social media users many other slangs and acronyms which confuse many users. However, it is easy to find the answer to your question as long as you are connected to internet.