2026-07-02
Complete guide to TikTok character limits for video captions, bio, comments, and username.
TikTok video captions can be up to 4,000 characters. This is a significant increase from the original 150-character limit. The expanded limit allows creators to add detailed descriptions, context, keywords, and hashtags to improve discoverability.
Bio: 80 characters. Username: 24 characters. Display Name: 30 characters. TikTok has one of the shortest bio limits among major platforms, requiring you to be extremely concise about who you are and what content you create.
Comments: 150 characters. Direct Messages: 500 characters. These short limits keep interactions quick and conversational, matching TikTok's fast-paced nature.
Hashtags count toward your caption's character limit. There's no official limit on the number of hashtags, but 3-5 relevant ones perform best. The #FYP and #ForYouPage hashtags are widely used but their effectiveness is debated. Focus on niche, relevant hashtags for better targeting.
Use the first line of your caption as a hook — it's what viewers see without tapping "more." Include relevant keywords for TikTok's search functionality. Keep hashtags relevant and specific. Use PostLen to count characters and preview your caption before posting to ensure it looks exactly how you want.
Use PostLen to check your character count before posting.
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