Paste your TikTok caption to check the 4,000-character limit, count hashtags, and see what shows in feed previews.
TikTok limits
Character counts update as you type
TikTok supports longer captions, but most viewers decide quickly whether a video is worth their attention. A clear first line can reinforce the hook, explain the premise, add searchable context, or give viewers a reason to comment.
Use this TikTok caption length checker to write captions that fit the platform while keeping the strongest message near the top. It is useful for creator briefs, organic posts, Spark Ads, and short-form campaigns where the caption needs to support both discovery and conversion.
Lumafly's Free TikTok Character Counter helps you publish with confidence. Use this free TikTok character counter to check caption character limits before you post. Count characters, hashtags, and mentions with guidance on what shows in feed previews.
TikTok
4,000 characters per caption
100 characters visible in feed preview
Add your TikTok caption including hashtags and mentions.
Character, word, hashtag, and mention counts update as you type.
See whether your caption fits TikTok's 4,000-character limit and how your opening line performs in feed previews.
Use this free tiktok character counter for organic posts, paid social ads, creator briefs, launch captions, giveaways, product drops, and short-form video descriptions. It helps you keep the hook visible, confirm your character count, and avoid last-minute edits inside the publishing flow.
Character limits are only one part of a strong post. Put the key message early, keep hashtags intentional, and check the preview before scheduling so the first line still makes sense when the platform truncates the caption.
The best captions usually combine one clear idea with enough context for a viewer to act. If your caption is long, structure it with a strong first sentence, useful details in the middle, and a direct CTA near the end. If it is short, make sure the hook still explains why the post is worth watching, saving, or clicking.
The first line should communicate the idea, benefit, or tension fast. Do not save the most important context for the hidden part of the caption.
Hashtags can add context, but too many tags can make a caption harder to read. Prioritize relevance over volume.
Mentions, hashtags, links, emojis, punctuation, and spaces all affect readability and may count toward character limits.
A caption for comments should ask a clear question. A caption for clicks should make the CTA obvious. A caption for saves should promise useful value.
Everything you need to know about TikTok caption limits
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