The Complete Character Limit Reference for Every Platform
Twitter/X: 280, LinkedIn: 3000, Instagram: 2200, TikTok: 150, YouTube: 5000. Here's every character limit that matters for social media managers and developers.
The Complete Character Limit Reference for Every Platform
Every social platform has its own character limit — some for historical reasons, some for technical constraints, some for engagement optimization. Here's every limit that matters.
Quick Reference Table
| Platform | Limit | Notes |
|---|---|---|
| Twitter / X | 280 | Hard limit, enforced |
| Threads | 500 | Includes links |
| 3000 | Post body | |
| 2200 | Caption | |
| 63206 | Very generous | |
| TikTok | 150 | Caption |
| YouTube | 5000 | Description |
| 500 | Description | |
| Discord | 2000 | Message |
| 40000 | Post body |
Twitter / X — 280 Characters
Twitter's famous 280-character limit is one of the most misunderstood constraints on the web. What most people don't know:
What's counted as characters:
- Every letter, number, and space
- Emojis count as 2 characters each (except certain Japanese emojis)
What's NOT counted:
- URLs (they're auto-shortened to 23 characters regardless of actual length — so don't bother counting)
Tips:
- Use the character counter to see exactly what Twitter counts
- The limit includes
@mentions and#hashtags - If you need more: reply to your own tweet to create a thread
Threads by Meta — 500 Characters
Threads posts follow Instagram's model. Links count toward the limit.
LinkedIn — 3,000 Characters
LinkedIn's 3000-character limit is generous but don't use all of it. Studies consistently show that 150-300 character posts get more engagement. The counter helps you stay concise.
LinkedIn also has:
- Headline: 220 characters
- "About" section: 2000 characters
- Comment: 1250 characters
Instagram — 2,200 Characters
Instagram captions over 125 characters get less engagement on average. Keep it punchy.
Instagram also has:
- Bio: 150 characters
- Hashtag limit: 30 hashtags per post
- Caption on carousel: same 2200
TikTok — 150 Characters
TikTok captions are short and punchy. 150 characters forces brevity. Use keywords early — the caption gets truncated after ~100 characters in the feed.
YouTube — 5,000 Characters
YouTube descriptions get truncated after the first 100-150 characters in mobile search results. Put the most important information first.
YouTube also has:
- Title: 100 characters (beyond this gets truncated in search)
- Channel description: 5000 characters
Meta Description Tags — 160 Characters
Not a social platform, but if you're writing meta descriptions for SEO:
Google typically displays the first 150-160 characters of a meta description in search results. The counter tool on Toolblip has a specific "meta description" preset.
How to Count Characters Without Messing Up
When writing for a platform with a character limit:
- Draft without looking at the counter — write naturally first
- Then check — copy into the character counter tool
- Trim methodically — remove filler words, redundant phrases
- Check the specific preset — use Twitter, LinkedIn, or meta tag presets to see the relevant limit
Free Tools
The most useful tool is one that shows:
- Total character count
- Total byte count
- Platform-specific limits overlaid
- Live remaining count as you type
👉 Character Counter with all platform presets →
See exactly how Twitter, LinkedIn, Instagram, and meta tag limits compare against your text in real time.
The Meta Tag Rule
If you're a developer building UGC forms that accept social media content: always show the character counter with the relevant limit. Users routinely exceed limits and it's frustrating to lose content when submitting.
Toolblip Team
Writing about developer tools, web performance, and the tools that make building faster.