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How long can a TikTok caption be?
According to TikTok's Content Posting API guide, a caption can be up to 2200 characters. Verified 2026-10-16 from the official TikTok page.
| Spec | Value | Source | Last verified |
|---|---|---|---|
| Caption length (via TikTok's Content Posting API) | 2200 characters Counted in UTF-16 code units, so some emoji count as 2. | official page | Verified |
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Quoted from TikTok's official page and dated; we don't use third-party guides. How we verify.