Threads Sizes & Dimensions Guide
Threads image and video sizes for posts and clips. PostFast applies them when you schedule to Threads.
All Threads Sizes at a GlanceUpdated 2026
Every Threads content type with its recommended dimensions, aspect ratio, and limits. Tap any content type for the full specification.
Why Threads sizes matter
Threads is a fast, text-first feed from Meta, but images and video still drive engagement, and the app favors a vertical frame on mobile. Sizing media correctly keeps it sharp and fully visible instead of cropped or shrunk in the feed.
Threads content specificationsUpdated 2026
Post
Updated 2026Image posts display well at 1080x1920px (9:16) vertical on mobile, and square (1:1) also works. Keep the key subject centered.
Video
Updated 2026Threads video is vertical 1080x1920px (9:16) and can run up to 5 minutes. Upload vertical so it fills the mobile feed.
Threads best practices and common mistakes
Best practices
- ✓Use vertical 1080x1920px (9:16) media for the most mobile space.
- ✓Keep the subject centered so feed cropping does not cut it off.
- ✓Upload video as MP4 and keep clips under 5 minutes.
- ✓Use high-resolution images so they stay crisp after compression.
Common mistakes to avoid
- ✗Uploading small or low-resolution images that look soft.
- ✗Using wide landscape media that shows small in a vertical feed.
Developer Resources
Threads API Guides
Learn how to schedule Threads content programmatically via API
Frequently asked questions about Threads sizes
What are the Threads image and video sizes in 2026?
Threads sizes by content type: Post 1080×1920px, Video 1080×1920px. See the table above for the aspect ratio, file size, and supported formats of each one.
What is the best image size for Threads?
The recommended image size for Threads is 1080×1920px (9:16), used for posts. Upload at this size to avoid cropping and limit compression.
What aspect ratio does Threads use?
Threads uses 9:16 for posts and videos.
How long can Threads videos be?
On Threads, Video up to 300 seconds (5 minutes).
What file formats does Threads support?
Across its content types, Threads supports JPG, JPEG, PNG, GIF, MP4, and MOV. Use JPG for photos, PNG for graphics with text, and MP4 for video.
Does Threads compress images?
Threads re-encodes uploads like Instagram. Posting at 1080px wide in a vertical or square ratio keeps images sharp and limits visible compression.
Does Threads support landscape images?
Threads supports landscape and square images, but vertical 1080x1920px (9:16) and square 1:1 fill more of the mobile feed. Wide landscape media shows smaller and can feel lost in a vertical feed.
Sizes for other platforms
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