MGID image & ad sizes

Teaser Medium confidence — verified against reputable sources. Verified 2026-10

Drop a creative or type a size — see every placement it fits

Drag & drop your creative or click to choose a file Checks every sized placement at once (5)

Or type a size

Nothing is uploaded or saved — the check runs entirely in your browser.

5placements
4layouts to produce
3aspect ratios

Image 4 Video 1

Official documentation

Size map

Every frame is drawn to the same scale · largest 1020×680

800×800 3
1020×680 4
960×540 2
600×400 1
492×328 5

Numbers match the rows of the size table

All MGID sizes

Placement	Ratio	Max weight	Formats	Video	Text limits	Confidence
1. Native teaser image — recommended (3:2) Landscape	3:2	10 MB	JPGJPEGPNG+1	—	4	Medium confidence — verified against reputable sources
Notes & best practice Minimum size is 492x328. MGID recommends 600x382 or larger; 600x400 is the 3:2 size that meets this. One uploaded creative is automatically cropped to three ratios: 16:9, 3:2, and 1:1. 16:9 is the preferred display. Keep the main subject centered in a safe area. Keep text and graphics on the thumbnail minimal, and do not duplicate the title, description, or CTA in the image. No contact info (address, email, phone) in the title. Avoid ALL CAPS and multiple exclamation marks. Files up to 10 MB are accepted but compressed to a 5 MB maximum. Full specification Size (px) Ratio 3:2 Max weight 10 MB Formats JPG, JPEG, PNG, WEBP Text limits Title90chars Description90chars CTA30chars Advertiser name25chars Medium confidence — verified against reputable sources Source: help.mgid.com (opens in a new tab)
2. Native teaser image — widescreen (16:9) Landscape	16:9	10 MB	JPGJPEGPNG+1	—	4	High confidence — confirmed in the official documentation
Notes & best practice 16:9 is the preferred display crop. MGID recommends 960x540 for this crop. Keep key visuals centered, as the same asset is also shown in 3:2 and 1:1 ratios. Full specification Size (px) Ratio 16:9 Max weight 10 MB Formats JPG, JPEG, PNG, WEBP Text limits Title90chars Description90chars CTA30chars Advertiser name25chars High confidence — confirmed in the official documentation Source: help.mgid.com (opens in a new tab)
3. Native teaser image — square (1:1) Square	1:1	10 MB	JPGJPEGPNG+1	—	4	High confidence — confirmed in the official documentation
Notes & best practice Square crop used in some widget placements. MGID recommends 800x800 for this crop. The square is generated from the same uploaded creative, so ensure the subject remains centered for a 1:1 crop. Full specification Size (px) Ratio 1:1 Max weight 10 MB Formats JPG, JPEG, PNG, WEBP Text limits Title90chars Description90chars CTA30chars Advertiser name25chars High confidence — confirmed in the official documentation Source: help.mgid.com (opens in a new tab)
4. Native video / animated GIF (Motion Ad) Video	3:2	15 MB	MP4MOVGIF	15 s	4	High confidence — confirmed in the official documentation
Notes & best practice MGID Motion Ads accept video and animated GIF creatives up to 15 seconds. Follows the same 16:9 to 1:1 crop behavior as static images. Minimum size is 680x680, and recommended is 1020x680 or higher. GIFs can be up to 5 MB, and MP4 or MOV videos up to 15 MB. Full specification Size (px) Ratio 3:2 Max weight 5 MB Formats · Video MP4, MOV, GIF Max duration 15 s Max video 15 MB Text limits Title90chars Description90chars CTA30chars Advertiser name25chars High confidence — confirmed in the official documentation Source: help.mgid.com (opens in a new tab)
5. Push notification creative Other	3:2	10 MB	JPGJPEGPNG+1	—	2	Medium confidence — verified against reputable sources
Notes & best practice Separate MGID push channel. Title limit is 30 characters, and description limit is 40 characters. MGID does not publish push-specific image dimensions; the standard image spec (at least 492x328) is assumed to apply. Full specification Size (px) Ratio 3:2 Max weight 10 MB Formats JPG, JPEG, PNG, WEBP Text limits Title30chars Description40chars Medium confidence — verified against reputable sources Source: help.mgid.com (opens in a new tab)
6. Minimum image size (3:2 rectangle) Landscape Minimum accepted sizesee 1	3:2	10 MB	JPGJPEGPNG+1	—	4	High confidence — confirmed in the official documentation
Notes & best practice Minimum accepted dimensions for the rectangular crop. Anything smaller is rejected. Use 600x400 or larger for quality. Full specification Size (px) Ratio 3:2 Max weight 10 MB Formats JPG, JPEG, PNG, WEBP Text limits Title90chars Description90chars CTA30chars Advertiser name25chars High confidence — confirmed in the official documentation Source: help.mgid.com (opens in a new tab)
7. Native teaser image — high-res optimal (3:2) Landscape Another size for the same uploadsee 1	3:2	10 MB	JPGJPEGPNG+1	—	4	High confidence — confirmed in the official documentation
Notes & best practice MGID's ad creation requirements recommend 900x600 for the 3:2 crop (960x540 for 16:9 and 800x800 for 1:1). The same upload is cropped to all three ratios, so keep the subject centered. Full specification Size (px) Ratio 3:2 Max weight 10 MB Formats JPG, JPEG, PNG, WEBP Text limits Title90chars Description90chars CTA30chars Advertiser name25chars High confidence — confirmed in the official documentation Source: help.mgid.com (opens in a new tab)

High confidence — confirmed in the official documentation Medium confidence — verified against reputable sources Lower confidence — changes frequently, verify before launch shortened, full wording in the row details reference size, not a separate upload: the checker, kit and size map skip it

Minimum creative kit

Layouts: 4 · placements covered: 5 of 5

Layout	Max weight	Formats	Covers
3:2Image	10 MB	JPGPNGWEBP	Native teaser image — recommended (3:2)Push notification creative
16:9Image	10 MB	JPGPNGWEBP	Native teaser image — widescreen (16:9)
1:1Image	10 MB	JPGPNGWEBP	Native teaser image — square (1:1)
3:2Video	15 MB	MP4MOVGIF	Native video / animated GIF (Motion Ad)

Text limits

Placements with limits: 5 of 5 · characters unless noted

Placement	Title	Description	CTA	Advertiser name
Native teaser image — recommended (3:2)	90	90	30	25
Native teaser image — widescreen (16:9)	90	90	30	25
Native teaser image — square (1:1)	90	90	30	25
Native video / animated GIF (Motion Ad)	90	90	30	25
Push notification creative	30	40	—	—