✳ FREE SPEC CHEAT SHEET

Threads video spec cheat sheet

Threads inherits Instagram’s account infrastructure but its own feed overlay is light - the format rewards a text-first hook since it still behaves more like a conversation feed than a video feed.

Resolution
1080 x 1920px
Aspect ratio
9:16 or 1:1
Max length
up to 5 minutes
Max file size
not publicly documented
Caption limit
500 characters
Safe zone
Covered by the app interface: sources disagree (recorded top 5-6%, bottom 8-18%, left 0-4%, right 0-4%). Safe zone overlay
Requirements vary by upload surface and account. These are references, not a full file-compatibility check.

Frequently asked

What aspect ratio does Threads use?

Threads is built around 9:16 or 1:1. Threads inherits Instagram’s account infrastructure but its own feed overlay is light - the format rewards a text-first hook since it still behaves more like a conversation feed than a video feed.

What's the max video length on Threads?

up to 5 minutes (300 seconds).

What's the caption character limit on Threads?

Threads caps captions at 500 characters.