Threads Post Specifications 2025

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Complete guide to Threads post dimensions, text limits, and media specifications for 2025. Create engaging Threads posts with the perfect format for maximum reach.

Quick Specs

Dimensions
1080 × 1920px
Vertical (9:16)
Aspect Ratio
9:16
Recommended
Max File Size
100MB
Per image/video file. Up to 10 media items per post
Formats
JPG, JPEG, PNG +1
Supported formats

Dimensions & Resolution

Vertical (9:16)Recommended
1080 × 1920px

Optimal for mobile feed experience

Portrait (4:5)Recommended
1080 × 1350px

Great for mixed media posts

Square (1:1)
1080 × 1080px

Works across all devices

Landscape (16:9)
1920 × 1080px

Supported but not optimal for mobile feed

Important Notes

Threads is Meta's text-based conversation app competing with X (Twitter). Posts support up to 500 characters with rich media. As of March 2025, Threads supports text attachments up to 10,000 characters that don't count toward the 500-character limit. The platform emphasizes visual content with support for up to 10 photos or videos per post. Threads integrates closely with Instagram for cross-posting and audience building.

Optimization Tips

  • Keep main text under 500 characters, use 10k attachments for longer content
  • Text attachments (up to 10k chars) perfect for detailed explanations
  • Use 9:16 vertical images for best mobile display
  • Add up to 10 images or videos per post for carousels
  • Link your Instagram account for cross-posting
  • Reply to your own thread to create longer conversations
  • Use hashtags sparingly - they are not clickable yet
  • Profile photos are 320×320px circular crops

Sources & Verification

Last verified: 2025-09-28

500 character limit + 10k text attachments (March 2025), up to 10 media items per post, 5-minute videos. Launched July 2023.

Profile & Page Dimensions

profile Photo:320×320px
profile Format:Circular crop
bio Links:5
bio Links Note:Up to 5 clickable links in bio

Content Limits

Text Limits

Post Characters:500
Text Attachment Characters:10000
Text Attachment Note:Text attachments don't count toward 500 char limit (March 2025)
Bio Characters:150
Username Characters:30

Media Limits

Images Per Post:10
Videos Per Post:10
Carousel Max:20

Up to 20 items in carousel for some users as of Dec 2024

features

Editing:Edit within 5 minutes
Hashtags:Not clickable
Mentions:Clickable @mentions
Reposts:
Quotes:
Polls:

integration

Instagram:Cross-posting enabled
Fediverse:ActivityPub support planned
Sharing:Share to Instagram Stories

Schedule Threads posts at optimal times

Auto-resize imagesCross-post to Instagram
Start scheduling posts

Frequently Asked Questions

What's the character limit on Threads?

Threads posts have a 500 character limit for the main text. As of March 2025, you can add text attachments up to 10,000 characters that don't count toward this limit. You can also reply to your own posts to create threads.

How many images can I add to a Threads post?

You can add up to 10 images or videos to a single Threads post, which will display as a swipeable carousel. As of December 2024, some users can add up to 20 items.

What image format works best on Threads?

9:16 vertical images (1080×1920px) work best as they fill the mobile screen. 4:5 portrait (1080×1350px) is also recommended for mixed media posts.

Can I edit Threads posts after publishing?

Yes, Threads allows you to edit posts within 5 minutes of publishing, unlike Twitter which requires a paid subscription for editing.

Recent Updates

2025-01-01

Threads maintains 500 character limit with support for up to 10 media items per post

2024-12-05

Threads launched carousel posts with up to 20 images or videos

2025-03-15

Text attachments up to 10,000 characters added (not counted in 500 limit)

Related Specifications

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Last updated: September 28, 2025