Google YouTube | PrograMetrix creative specs

Video assets

Google YouTube: Video assets
Specification	Requirement
Recommended horizontal	1920 × 1080 (16:9)
Recommended vertical	1080 × 1920 (9:16)
Recommended square	1080 × 1080 (1:1)
Accepted file examples	MP4, MOV, WebM; see source for the complete list
Maximum upload size	256 GB
Safe zones	Use the official template for the selected orientation

Google YouTube: Skippable in-stream
Specification	Requirement
Delivery	Public or unlisted YouTube video URL
Awareness duration recommendation	15–20 seconds
Consideration duration recommendation	2–3 minutes
Reservation duration	12 seconds–6 minutes

Auction skippable ads have no format-specific minimum or maximum in this guide; YouTube upload limits still apply.

Google YouTube: Non-skippable and bumper
Specification	Requirement
Bumper	Up to 6 seconds
Standard non-skippable	7–15 seconds
30-second CTV format	16–30 seconds; 30-second assets must be horizontal

These are the formats in Google’s dedicated non-skippable guide. Other campaign products can differ; confirm the campaign’s requirements.

Google YouTube: In-feed
Specification	Requirement
Delivery	Public or unlisted YouTube video URL
Description	Up to two lines; 35 characters maximum per line
Headline	Confirm in the campaign setup; the source currently lists conflicting headline limits

Descriptions may not display in every placement.

Google YouTube: Shorts
Specification	Requirement
Recommended duration	Less than 60 seconds

Checked dates reflect a review of the source, not its publication date.