Social Media Character Limits in 2026: Complete Guide for Every Platform

Why Character Limits Matter

Every social media platform enforces character limits. Going over means your post gets cut off, your ad gets rejected, or your SEO title truncates in search results. Knowing these limits helps you craft content that displays perfectly everywhere.

2026 Character Limits by Platform

Twitter/X

• Post: 280 characters (free), 25,000 (Premium)
• Display name: 50 characters
• Bio: 160 characters
• DM: 10,000 characters

Instagram

• Caption: 2,200 characters
• Bio: 150 characters
• Hashtags: 30 per post
• Comments: 2,200 characters
• Reel title: 100 characters

LinkedIn

• Post: 3,000 characters
• Article: 125,000 characters
• Headline: 220 characters
• Summary: 2,600 characters
• Company description: 2,000 characters

YouTube

• Video title: 100 characters
• Description: 5,000 characters
• Comment: 10,000 characters
• Channel name: 100 characters
• Channel description: 1,000 characters

TikTok

• Caption: 4,000 characters
• Bio: 80 characters
• Username: 24 characters
• Comment: 150 characters

Facebook

• Post: 63,206 characters
• Comment: 8,000 characters
• Ad headline: 40 characters
• Ad primary text: 125 characters
• Page description: 255 characters

SEO Character Limits

These are critical for search engine optimization:

• Meta title: 50-60 characters (Google truncates after ~60)
• Meta description: 150-160 characters
• URL slug: Keep under 75 characters

Google Ads Limits

• Headline: 30 characters (up to 15 headlines)
• Description: 90 characters (up to 4 descriptions)
• Display URL path: 15 characters each

Tips for Writing Within Limits

1. Lead with the hook — Put your most important words first
2. Use abbreviations wisely — Save characters without losing clarity
3. Skip unnecessary words — "very", "really", "just" can often be removed
4. Use line breaks — They make posts more readable (counts as 1 character each)
5. Test before posting — Use a character counter to verify

Count Your Characters Instantly

Use our free Character Counter tool to count characters, words, sentences, and instantly check limits for Twitter, Instagram, LinkedIn, YouTube, Google Ads, and more. No signup required!