The most popular social media platform by monthly active users is Facebook , with about 3.07 billion users. It is followed closely by Instagram and WhatsApp, each at roughly 3 billion users.

Quick scoop

If you mean global audience size , Facebook is the current leader.

If you mean favorite or most used for a specific audience , the answer can change by country, age group, and content type. For example, YouTube is often dominant for video, while TikTok is especially strong for short-form content.

Top platforms by size

Rank| Platform| Monthly active users
---|---|---
1| Facebook| 3.07 billion
2| Instagram| 3.0 billion
3| WhatsApp| 3.0 billion
4| YouTube| 2.5–2.58 billion
5| TikTok| 1.6–1.99 billion

Bottom line

For a simple answer: Facebook is the most popular social media platform overall right now.