TikTok Character Limits in 2026
Complete guide to TikTok character limits for captions, bios, comments, and usernames. Learn how to use all 4,000 caption characters for maximum discoverability.
All TikTok Character & Post Limits
| Field | Limit | Unit | Notes |
|---|---|---|---|
| Posts & Captions | |||
Video CaptionPrimary | 4,000 | characters | — |
Hashtags per Post | 4,000 | characters | No fixed limit, counts toward caption |
Stitch Caption | 150 | characters | — |
| Profile & Bio | |||
Bio | 80 | characters | — |
Username | 24 | characters | — |
Display Name | 30 | characters | — |
| Comments & Replies | |||
Comment | 150 | characters | — |
| Messages | |||
Direct Message | 500 | characters | — |
TikTok Character Limit Tips
Use the expanded 4,000-character caption
TikTok increased its caption limit to 4,000 characters. Longer captions with relevant keywords help your videos appear in TikTok's search results and the For You page.
Bio is limited to 80 characters
TikTok bios are capped at just 80 characters, one of the shortest among all platforms. Use abbreviations and symbols to pack in your key message and a call-to-action.
Hashtags eat into your caption space
Hashtags on TikTok are part of your 4,000-character caption limit. Each hashtag including the # symbol counts against your total. Prioritize 3-5 targeted hashtags over generic ones.
Captions display as overlay text
TikTok shows captions overlaid on the video. Long captions are collapsed with a "more" tap after about 2-3 lines. Write your hook in the first 80-100 characters to grab attention.
Comment replies are mini content opportunities
TikTok comments allow up to 150 characters. Reply to comments with video responses instead of text when you need more space to answer detailed questions.
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