Platform Character Limits (2026)

Every social media platform has different character limits, and they change frequently. Here's the current landscape:

X (Twitter)280 chars

Instagram Caption2,200 chars

Instagram Bio150 chars

LinkedIn Post3,000 chars

Facebook Post63,206 chars

TikTok Caption4,000 chars

Threads500 chars

YouTube Title100 chars

YouTube Description5,000 chars

Pinterest Description500 chars

Optimal vs. Maximum Length

The maximum character limit and the optimal posting length are very different. Research shows that shorter posts tend to get more engagement:

✓X (Twitter): 280 max, but 70-100 chars get highest engagement

✓Instagram: 2,200 max, but first 125 chars visible before 'More' — put your hook there

✓LinkedIn: 3,000 max, but first 210 chars visible before 'See more'

✓Facebook: 63,206 max, but posts with 40-80 chars get 66% more engagement