Social Media Character Limits in 2026: Complete Reference

Every social media platform has different character limits, and they change frequently. Posting content that gets cut off looks unprofessional and reduces engagement. Here is the complete, up-to-date reference for 2026.

X (Formerly Twitter)

Content TypeCharacter Limit
Standard post280 characters
Premium post25,000 characters
Display name50 characters
Bio160 characters
DM10,000 characters

Instagram

Content TypeCharacter Limit
Caption2,200 characters
Bio150 characters
Hashtags per post30 maximum
Comment2,200 characters
Reel caption2,200 characters

LinkedIn

Content TypeCharacter Limit
Post3,000 characters
Article125,000 characters
Headline220 characters
Summary/About2,600 characters
Comment1,250 characters

Facebook

Content TypeCharacter Limit
Post63,206 characters
Ad headline40 characters (recommended)
Ad primary text125 characters (recommended)
Comment8,000 characters
Page description255 characters

TikTok

Content TypeCharacter Limit
Caption4,000 characters
Bio80 characters
Username24 characters
Comment150 characters

Pinterest

Content TypeCharacter Limit
Pin title100 characters
Pin description500 characters
Board name50 characters
Board description500 characters

Optimal vs. Maximum Length

Just because a platform allows thousands of characters does not mean you should use them all. Shorter posts typically get higher engagement. Instagram captions under 125 characters perform best. LinkedIn posts between 1,200–1,600 characters earn the most engagement. X posts around 100 characters get more retweets.

Count Characters Before Posting

Our free Social Media Post Generator shows your character count in real time and warns you when you approach platform limits — all processed privately in your browser.

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Read next: Best Instagram Caption Length · Twitter/X Post Best Practices