Social Media Character Limits by Platform | Ayrshare Docs

Reference post character limits for each social network: Facebook, Instagram, X, LinkedIn, TikTok, and more, when publishing through the Ayrshare API.

Social Media Character Limits Reference

This comprehensive guide provides character limits for all supported social media platforms when posting through Ayrshare. Understanding these limits helps ensure your content is properly formatted and doesn’t get truncated or rejected.

Platform-Specific Character Limits

Bluesky Character Limits

Property	Description
post	300 characters maximum

See Bluesky Publishing Options for more information.

Facebook Character Limits

Property	Description
post	63,206 characters maximum
title	reels title - 255 characters maximum (truncated if over)

See Facebook Publishing Options for more information.

Google Business Profile Character Limits

Property	Description
post	1,500 characters maximum
Event Title	58 characters maximum
Coupon Code	58 characters maximum

See Google Business Profile Publishing Options for more information.

Instagram Character Limits

Property	Description
post	2,200 characters maximum
altText	1,000 characters maximum per image
comment	2,196 characters maximum

See Instagram Publishing Options for more information.

LinkedIn Character Limits

Property	Description
post	3,000 characters maximum
title	400 characters maximum
comment	1,250 characters maximum

See LinkedIn Publishing Options for more information.

Pinterest Character Limits

Property	Description
post	500 characters maximum
title	100 characters maximum
link	2,048 characters maximum
altText	500 characters maximum

See Pinterest Publishing Options for more information.

Reddit Character Limits

Property	Description
post	5,000 characters maximum
title	300 characters maximum
comment	10,000 characters maximum

See Reddit Publishing Options for more information.

Snapchat Character Limits

Property	Description
post	500 characters maximum
post	spotlight - 160 characters maximum (truncated if over)

See Snapchat Publishing Options for more information.

Telegram Character Limits

Property	Description
post	1,024 characters maximum (truncated if over)

See Telegram Publishing Options for more information.

Threads Character Limits

Property	Description
post	500 characters maximum

See Threads Publishing Options for more information.

TikTok Character Limits

Property	Description
post	2,200 characters maximum

See TikTok Publishing Options for more information.

X/Twitter Character Limits

Property	Description
post	280 characters maximum
post	25,000 characters maximum (Premium X accounts such as Premium or Premium Plus)
altText	1,000 characters maximum per image
subTitleName	150 characters maximum

See X/Twitter Publishing Options for more information.

YouTube Character Limits

Property	Description
post	5,000 characters maximum
youTubeOptions > title	100 characters maximum
youTubeOptions > tags	500 characters total, 2+ characters each
youTubeOptions > subTitleName	150 characters maximum

See YouTube Publishing Options for more information.

API Considerations

When using the Ayrshare API:

• Posts exceeding character limits will be rejected with an error
• Some platforms may truncate content rather than reject it (Telegram, Snapchat Spotlight)
• Consider using shortenLinks: true for platforms with tight limits

Updates and Changes

Social media platforms do update their character limits. This guide is current as of the last update, but we recommend:

• Using our API error responses to identify limit issues
• Checking the Ayrshare Latest Updates page for platform updates