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·Updated June 2026
In 2026, 9:16 (vertical) is the dominant short-form format across TikTok, Reels, Shorts, and Threads — while YouTube standard and LinkedIn remain 16:9. See every platform's specs below.
YouTube
Standard Video
YouTube
Shorts
TikTok
Feed Video
Reels
Feed Video
Feed Square
Feed Video
Reels
Video Post
X (Twitter)
Video Post
Threads
Video Post
Bluesky
Video Post
What aspect ratio is best for social media videos in 2026?
9:16 (vertical) is the dominant format in 2026. It is the native format for TikTok, Instagram Reels, YouTube Shorts, Facebook Reels, and Threads. For YouTube standard channel videos, LinkedIn, and X, 16:9 (landscape/widescreen) remains standard.
Can I use the same video on YouTube and TikTok?
Yes, but with caveats. YouTube standard videos are 16:9 (1920×1080) and TikTok is 9:16 (1080×1920). A 16:9 video posted on TikTok displays with black bars on the sides. For best results, produce a 9:16 version for TikTok, Instagram Reels, YouTube Shorts, and Facebook Reels, and a 16:9 version for YouTube channel videos and LinkedIn.
What is the best video resolution for TikTok?
TikTok recommends 1080×1920 pixels at 9:16 aspect ratio. TikTok supports up to 4K resolution, but 1080p is sufficient for most creators. Maximum file size is 287.6 MB.
What aspect ratio does Instagram use for Reels?
Instagram Reels use a 9:16 aspect ratio at 1080×1920 pixels. Reels can be up to 90 seconds long and 1 GB in file size. Content outside the 9:16 safe zone gets cropped in the Reels tab — design vertically from the start.
What are the YouTube video dimension requirements?
Standard YouTube videos should be 1920×1080 pixels at 16:9 aspect ratio. YouTube Shorts use 1080×1920 at 9:16. YouTube has no video length limit for standard uploads and supports files up to 256 GB.
Synchro distributes your video to YouTube, TikTok, Instagram, Facebook, LinkedIn, Threads, and Bluesky — each platform gets the right format automatically. Free to start.
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