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2 min readBy Usman Farooqi
Social Media Character Limits in 2026 (Cheat Sheet)
Caption, bio, title and comment length limits for Instagram, TikTok, YouTube, Facebook, X and Pinterest in one table, plus a free tool to count characters.
Quick answer: Instagram captions allow 2,200 characters, TikTok captions 4,000, YouTube titles 100 and descriptions 5,000. Paste your text into the Word Counter to check it before you post.
Limits at a glance
| Platform | Item | Limit |
|---|---|---|
| Caption | 2,200 characters (about 125 show before "more") | |
| Bio | 150 characters | |
| Hashtags | 30 per post | |
| TikTok | Caption | 4,000 characters |
| TikTok | Bio | 80 characters |
| YouTube | Title | 100 characters (about 60 show in results) |
| YouTube | Description | 5,000 characters |
| YouTube | Tags | 500 characters total |
| Post | 63,206 characters | |
| X (Twitter) | Post | 280 characters (more on paid plans) |
| Pin title | 100 characters | |
| Pin description | 500 characters |
Limits change, so confirm in the app if a post is rejected.
Count characters in seconds
- Open the Word Counter.
- Paste your caption. You get words, characters with and without spaces, sentences and reading time.
- Trim until you are under the limit.
The tool runs in your browser; your text is never sent anywhere.
Tips for better captions
- Put the hook in the first line. Only the start shows before "more".
- Keep hashtags relevant; five to ten beat thirty.
- Use line breaks to make text easy to scan.
Related
Planning visuals too? Use the sizes in Social media image sizes 2026 and check ratios with the Aspect Ratio Calculator. Creators can estimate earnings with the YouTube Money Calculator.