The most used social media platform in the world right now is Facebook, with just over 3.1–3.2 billion monthly active users in 2026, putting it ahead of WhatsApp, Instagram, and YouTube.

Quick Scoop

The current global leader

  • Facebook has around 3.1–3.2 billion monthly active users in 2026, making it the largest social media platform by total audience size.
  • It continues to dominate across many regions (Americas, Europe, large parts of Asia), especially for community groups, events, and broad‑reach advertising.

How other big platforms stack up

Here’s a compact view of the top players by global monthly active users:

[7][1][5] [1][7] [3][7][1] [3][7][1] [1][3]
Rank (2026) Platform Approx. monthly users Notable point
1 Facebook ≈3.1–3.2 billion Largest overall reach.
2 WhatsApp ≈3.0 billion Extremely high daily open rate; messaging‑first.
2 Instagram ≈3.0 billion Visual, creator‑heavy, tied with WhatsApp on size.
4 YouTube ≈2.6–2.85 billion Video‑first, massive global reach.
5 TikTok ≈2.0 billion Most “engaging” app by time spent per day.

“Most used” can mean different things

If you look at time spent , TikTok comes out on top: users spend around 1.5 hours per day on it on average, more than on any other major platform.

If you look at reach and monthly users , Facebook is still number one globally, which is why it’s typically called the most used social media platform.

On forums and marketing blogs, you’ll often see people say something like:
“TikTok is where people spend the most time, but Facebook is still the king if you care about raw reach.”

Trend and “latest news” angle

  • Recent rankings for 2025–2026 consistently place Facebook, Instagram, WhatsApp, and YouTube as the top four by global audience, with TikTok close behind.
  • Despite slower growth in younger audiences, Facebook’s scale, ad tools, and cross‑integration with Instagram and WhatsApp keep it firmly in the lead as of early 2026.

TL;DR

Facebook is the most used social media platform in the world by monthly active users, but TikTok often wins if you define “most used” as the app people spend the most time on daily.

Information gathered from public forums or data available on the internet and portrayed here.