2026-07-02
Side-by-side comparison of character limits across X, Instagram, LinkedIn, Threads, YouTube, TikTok, and more.
X (Twitter): 280 characters (25,000 for Premium). Instagram: 2,200 characters. LinkedIn: 3,000 characters. Threads: 500 characters. YouTube Description: 5,000 characters. TikTok: 4,000 characters. Facebook: 63,206 characters. Each platform has a different philosophy about content length, from X's brevity to Facebook's essentially unlimited text.
X Bio: 160 characters. Instagram Bio: 150 characters. LinkedIn Headline: 220 characters. Threads Bio: 150 characters (shared with Instagram). YouTube Channel Description: 1,000 characters. TikTok Bio: 80 characters. TikTok has the shortest bio limit, while LinkedIn offers the most space for professional descriptions.
Not all platforms count characters the same way. X counts CJK characters as 2 and always counts URLs as 23 characters. Instagram and Threads count most characters as 1. LinkedIn counts all characters equally. Understanding these differences is crucial for cross-platform posting.
Most platforms show only a preview of longer posts. X: Full 280 visible. Instagram: First 125 characters visible in feed. LinkedIn: First 140 characters visible before "see more". YouTube: First 150-200 characters of description visible. The visible portion is what drives engagement — optimize for it.
When cross-posting, don't just copy the same text everywhere. Tailor your message to each platform's limit and audience. Use PostLen to check all platform limits simultaneously — type once and see how your text fits across every platform. Focus on platforms where your target audience is most active.
Use PostLen to check your character count before posting.
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