Social media post length checker: Fit every caption to every network before you post.
Each social network cuts posts at a different length, and the first line matters most because feeds truncate it. This free checker counts your characters in the browser and shows how your text fits the limits of the 8 networks Marketing Studio publishes to.
Social media post length checker
- Characters
- 0
- Words
- 0
- Hashtags
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| Network | Limit | Used | Left |
|---|---|---|---|
| X · Post | 280 | 0 | 280 |
| Instagram · Caption | 2,200 | 0 | 2,200 |
| Facebook · Post | 63,206 | 0 | 63,206 |
| LinkedIn · Post | 3,000 | 0 | 3,000 |
| TikTok · Caption | 4,000 | 0 | 4,000 |
| YouTube · Title | 100 | 0 | 100 |
| YouTube · Description | 5,000 | 0 | 5,000 |
| Telegram · Message | 4,096 | 0 | 4,096 |
| Telegram · Media caption | 1,024 | 0 | 1,024 |
| Reddit · Title | 300 | 0 | 300 |
Limits as published by each network in November 2026. X counts most CJK characters (e.g. Korean) as 2.
What are the character limits on each network?
Published limits at the time of writing are shown in the table below. Platforms change them, and paid tiers sometimes allow more, so check each network's help pages before relying on a number.
Character limits by network
| Network |  Text limit | Notes |
|---|---|---|
| 2,200 characters per caption | Feed shows about the first 125 characters | |
| 63,206 characters per post | Short posts are read more | |
| 3,000 characters per post | Feed shows the first lines, then "see more" | |
| X | 280 characters | Longer posts need a paid subscription |
| TikTok | 4,000 characters per caption | Keep the hook in the first line |
| YouTube | 100 characters per title; 5,000 per description | Front-load keywords in the title |
| Telegram | 4,096 characters per message; 1,024 per media caption | Premium accounts allow longer captions |
| 300 characters per title; 40,000 per text post | Each subreddit has its own rules |
How to check social media post length
- 1
Step 1
Paste your caption
Paste or type your post text, including emojis and hashtags.
- 2
Step 2
Check every network
See which networks it fits and where it would be cut.
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Step 3
Adapt, don't copy
Shorten for X, expand for LinkedIn, and keep the hook in the first line everywhere.
Want this done for you?
Marketing Studio's AI employees create, publish and track your marketing across 8 social networks, email, ads and SEO, and its SEO & AI-SEO audit checks robots.txt, llms.txt and structured data automatically, with optional fixes committed to GitHub.
Social media post length checker: frequently asked questions
Still have questions? Talk to a human
Do emojis count as more than one character?
Some do. Many emojis count as two characters on X and similar networks, and emojis built from several code points, such as flags or skin tones, can count as more. The checker counts them the way each network does, so leave a little room when a post is close to the limit.
