YouTube Shorts
Render a vertical film of up to 3 minutes for YouTube Shorts, with the limits, an estimated safe zone and the vawe commands.
At the end of this page you have a 1080 × 1920 film of 180 seconds or less that YouTube files as a Short. The same page can also make the 16:9 film: see Vertical social for the layout and YouTube for the wide upload.
The limits
The sourced table is in Video specs by platform. Read from YouTube Help on 2026-10-31:
- A video with a square or vertical aspect ratio, up to three minutes long, is a Short. YouTube states this for uploads from 2024-10-15.
- The maximum Shorts resolution is 1080p. YouTube publishes no pixel size, no frame rate and no file size for Shorts.
- YouTube states no loudness target.
The vawe 9:16 final is 1080 × 1920, which is inside the 1080p limit.
Safe zone (estimate)
YouTube publishes no pixel values for the Shorts interface.
As an estimate, use the Meta numbers for Reels ads: 14% of the top, 35% of the bottom and 6% of each side kept free. They are a Meta suggestion for Instagram ads, not a YouTube rule. The pixel values for 1080 × 1920 are on Instagram Reels.
Make the film
Start a 9:16 page under 3 minutes
bin/vawe new my-short --request "a 30 second tip about the product" --aspect 9:16 --length 30The verb writes <meta name="aspect" content="9:16"> and <meta name="duration" content="30"> into the page. Keep the duration at 180 or less.
Look at a vertical frame
bin/vawe still films/my-short/page.html --at 3 --aspect 9:16Open the PNG in out/still/ and check that the text sits inside the box above. Read Aspect ratios: the page lays out with --vw and --vh, never with a crop.
Draft, then ship
bin/vawe dev films/my-short/page.html --aspect 9:16
bin/vawe ship films/my-short/page.html --aspect 9:16
bin/vawe ship --status --waitship needs a fresh critique and the owner approval. See Ship.
Sound and captions
The moves caption-karaoke and caption-editorial in prompts/moves/ are two caption styles for words on screen. YouTube gives no loudness target, so the default mix is a safe start: it lands near -20 LUFS. See Loudness and the mix.
Limits
- A final is 60 fps.
shiphas no fps flag, and YouTube publishes no frame rate for Shorts. - The Shorts upload help page says “vertical”. The newer three-minute page says “square or vertical”. This guide follows the newer page.
- A film of exactly 180 seconds is at the limit. Leave a margin.
Video specs by platform
Vertical social
Aspect ratios
From the blogHTML video aspect ratio: 16:9, 9:16 and 1:1