// Social Media
Character Counter online
Count characters and check real-time limits for X, Instagram, LinkedIn, Threads, TikTok, SMS and more - updated 2026
by
CHUNKY
MUNSTER
MUNSTER
Character Counter (Social Media Limits) provides instant tracking of text length for all major digital platforms. This free online character limits tool ensures your content fits perfectly within the constraints of X, Instagram captions, and LinkedIn posts without needing multiple checks. By using a precise character limit checker algorithm, you can write with confidence knowing exactly how much space you have left.
Different channels have varying thresholds: 280 for X, 2,200 for Instagram, and 3,000 for LinkedIn. This twitter character counter also calculates secondary metrics like a reading time calculator based on average words-per-minute. Whether you're optimizing an instagram caption counter result or checking SMS segment counts, this tool handles the Unicode and GSM-7 logic automatically. This ensures that emojis and special characters are counted correctly according to each platform's specific API rules.
No. URLs are always counted as 23 characters regardless of actual length. Emojis count as 2 characters (they are encoded as surrogate pairs in the Twitter API). Mentions and hashtags count normally.
Standard SMS is 160 GSM-7 characters. Using emojis, special symbols, or certain accented characters switches the encoding to UCS-2, which supports Unicode but reduces the per-segment limit to 70. Long SMS messages are split into segments of 153 (GSM-7) or 67 (UCS-2) when using concatenated SMS.
Instagram captions can be up to 2,200 characters. Only the first 125 characters show without a "more" tap in the feed. Instagram also truncates hashtags at the end at various points in the algorithm - keeping captions concise often improves engagement.
Yes. Emoji are multi-byte Unicode characters - some are represented by multiple code points (emoji sequences with zero-width joiners). The counter uses JavaScript's spread operator over the string to count by Unicode code points, not by UTF-16 code units.
Whether you're drafting a viral thread or a professional update, this utility keeps your text within bounds. For more content editing options, check out the Word Count tool, Case Converter, and the Word Wrap utility. Bookmark this character counter for a fast, free online social media limits tool whenever you need to check your length.