X Character Counter (Twitter Character Limit Tool)
Check character counts, word counts, hashtags, and 280-character limits in real time with visual progress indicators.
Platform Character Limit Meters
280 characters for standard accounts. Optimal length is 180-240 characters for retweets.
3,000 character hard limit. First 210 chars appear before the 'See more' cutoff fold.
2,200 character limit. Captions truncate in feed after 125 characters.
63,206 character limit. Posts under 80 characters receive up to 66% higher engagement.
500 characters per post limit.
How many characters can you use on X (Twitter)?
The standard character limit on X (formerly Twitter) is 280 characters per post. Verified X Premium accounts have access to expanded limits up to 25,000 characters, but standard posts between 180 and 240 characters receive the highest engagement and quote-retweet rates across mobile feeds.
Unlike generic AI assistants that output clichéd platitudes, supapost applies proven patterns extracted from real top-performing social posts and replies. Use this free web tool for quick generation, or automate it in bulk using our REST API, n8n templates, and MCP server.
Example Outputs & Performance Patterns
Crawlable samples demonstrating high-engagement patterns vs generic filler.
Put this generation on autopilot
Every free generator is backed by supapost's REST API. Trigger posts and smart replies from Claude Code, n8n, Make, or custom cron scripts with your persistent brand voice applied.
# Automatically enforce platform character limits via API:
curl -X POST https://supapost.ai/api/v1/content/generate \
-H "Authorization: Bearer sp_live_..." \
-H "Content-Type: application/json" \
-d '{
"type": "social",
"platform": "x",
"topic": "Why character limits force clearer thinking"
}'How it works
Type or paste your post
Enter your draft into the counter. Counts update instantly with every keystroke.
Watch the limit meters
See exactly how many characters you have left before hitting 280 on X or limits on other networks.
Copy with confidence
Click Copy Text when your post is balanced and ready for publication.
Frequently asked questions
What is the character limit for X (Twitter)?
Standard X accounts have a 280-character limit per tweet. X Premium subscribers can post long-form articles up to 25,000 characters, though shorter 180-240 character posts continue to achieve higher engagement and retweet rates in standard feeds.
How do links, mentions, and emojis affect the X character count?
Any standard URL posted on X counts as 23 characters regardless of its original length due to t.co link wrapping. Emojis generally count as 2 characters depending on the Unicode surrogate pair. Spaces count as 1 character.
Explore related free tools
Social Media Character Limits
Cheat SheetComplete 2026 character limits cheat sheet across all social networks.
AI Tweet Generator
2.9k/moGenerate tweets that are automatically formatted within the 280-character limit.
Twitter Thread Generator
Break long content into a series of 280-character thread posts.
Ready to automate your social content?
Get 50 API requests per day, 1 workspace, and brand voice detection on the free plan.