What size should an Open Graph image be?

Meta recommends at least 1200 × 630 px for the best display on high-resolution screens, at an aspect ratio as close to 1.91:1 as possible, and a file no larger than 8 MB. The minimum it accepts is 200 × 200 px. LinkedIn asks for at least 1200 × 627 px, so 1200 × 630 works for both.

What size are Product Hunt thumbnail and gallery images?

Product Hunt recommends a square thumbnail of 240 × 240 px and gallery images of 1270 × 760 px, and all images must be under 3 MB. At least two gallery images are needed before the gallery shows on your post.

What image sizes does the Chrome Web Store need?

A 128 × 128 PNG icon in the extension package, at least one screenshot of 1280 × 800 or 640 × 400 px, and a small promo tile of 440 × 280 px. A 1400 × 560 marquee tile is optional.

Is my image uploaded when I check it?

No. The file is read and decoded by your browser on your device. The page has no upload endpoint, and the temporary preview address is released as soon as you check another image or leave.

Why does the checker say “works, not ideal”?

The image meets everything the platform requires but misses a recommendation, for example a link preview below 1200 × 630 px or a thumbnail that is square but smaller than 240 × 240 px. It will upload; it may look softer or be cropped.

Launch image size checker: Product Hunt, OG, stores

By Aleksandar Vuk JovanovicUpdated September 30, 2026How we research and update

Check an image

Choose or drop one image. You get its real pixel size, format and file size, and a verdict for each asset.

Choose an imageor drop it here

The image is read by your browser only. It is not uploaded, stored or sent anywhere.

All sizes at a glance

Read on September 30, 2026 from each platform’s official documentation. “Required” means the platform says must or maximum; “Recommended” is its advice.

Platform	Asset	Size	Rules	Source
Facebook (Open Graph)	Link preview (og:image)The og:image most sites and chat apps also read. Meta asks for 1.91:1 so the image is not cropped in Feed.	1200 × 630 px	Required: At least 200 × 200 px Required: At most 8 MB Recommended: At least 1200 × 630 px Recommended: Aspect ratio close to 1.91:1	Official page
LinkedIn	Link previewLinkedIn reads og:image too. 1200 × 630 meets both LinkedIn and Facebook.	1200 × 627 px	Required: At least 1200 × 627 px Required: At most 5 MB Recommended: Aspect ratio close to 1.91:1	Official page
Product Hunt	ThumbnailRequired. GIFs are allowed but only animate on hover, so the first frame counts.	240 × 240 px	Required: Square (1:1) Required: At most 3 MB Recommended: At least 240 × 240 px	Official page
Product Hunt	Gallery imageAt least two are required. 1270 × 760 is Product Hunt’s recommendation, not a hard limit.	1270 × 760 px	Required: At most 3 MB Recommended: Exactly 1270 × 760 px	Official page
Chrome Web Store	Extension iconInside the ZIP, not uploaded in the dashboard. Artwork about 96 × 96 with transparent padding.	128 × 128 px	Required: Exactly 128 × 128 px Required: Format: PNG	Official page
Chrome Web Store	ScreenshotAt least one, up to five. Full bleed, square corners. 1280 × 800 is preferred.	1280 × 800 px	Required: Exactly 1280 × 800 px / 640 × 400 px	Official page
Chrome Web Store	Small promo tileRequired. Items without it are shown after those that have one.	440 × 280 px	Required: Exactly 440 × 280 px	Official page
Chrome Web Store	Marquee promo tileOptional. Used if the store features your extension prominently.	1400 × 560 px	Required: Exactly 1400 × 560 px	Official page
Google Play	App iconFull square: Google Play applies the rounded mask itself. No shadow.	512 × 512 px	Required: Exactly 512 × 512 px Required: Format: PNG Required: 32-bit PNG (8-bit RGBA) Required: At most 1024 KB	Official page
Google Play	Feature graphicRequired to publish the store listing. No transparency.	1024 × 500 px	Required: Exactly 1024 × 500 px Required: Format: JPEG, PNG Required: No transparency (alpha channel)	Official page
GitHub	Social previewShown when the repository link is shared. Only shared from public repositories.	1280 × 640 px	Required: Format: PNG, JPEG, GIF Required: At most 1 MB Recommended: At least 640 × 320 px Recommended: At least 1280 × 640 px	Official page
YouTube	Video thumbnailUploads from a phone are limited to 2 MB; from a computer to 50 MB. 16:9 for videos.	3840 × 2160 px	Required: At least 640 px wide Required: At most 50 MB Recommended: Format: JPEG, PNG Recommended: Aspect ratio close to 16:9 Recommended: At most 2 MB	Official page
App Store	iPhone screenshot (6.9")One to ten screenshots. Portrait or landscape, no transparency.	1320 × 2868 px	Required: Exactly 1260 × 2736 px / 2736 × 1260 px / 1290 × 2796 px / 2796 × 1290 px / 1320 × 2868 px / 2868 × 1320 px Required: Format: PNG, JPEG Required: No transparency (alpha channel)	Official page
App Store	iPad screenshot (13")Required if the app runs on iPad. Portrait or landscape, no transparency.	2064 × 2752 px	Required: Exactly 2064 × 2752 px / 2752 × 2064 px / 2048 × 2732 px / 2732 × 2048 px Required: Format: PNG, JPEG Required: No transparency (alpha channel)	Official page
Google Search	Favicon in search resultsMinimum 8 × 8 px; Google recommends larger than 48 × 48 px. WebP and SVG are not in Google’s list.	square, any size	Required: Square (1:1) Required: At least 8 × 8 px Required: Format: BMP, GIF, ICO, PNG, JPEG, PPM, TIFF Recommended: Larger than 48 × 48 px	Official page

One source image for many places

Design one 1200 × 630 px link preview. It meets Meta’s recommended size and LinkedIn’s minimum, and it is 1.91:1 for both.
For GitHub, export the same design at 1280 × 640 px and keep the file under 1 MB. JPEG usually gets there; a large PNG often does not.
Store tiles are exact sizes: Chrome Web Store 440 × 280 and 1400 × 560, Google Play 1024 × 500. Design them separately: cropping a 1.91:1 design to these shapes cuts off part of it.
Keep a square logo at 512 × 512 px as a 32-bit PNG. It covers the Google Play icon, and scaled down it gives the Product Hunt thumbnail and a favicon larger than 48 × 48.
Screenshots for the App Store come from the simulator or device at the listed resolution. Resizing a desktop screenshot rarely lands on an accepted size.

How the check stays on your device

The file is read with the browser’s File API. The page reads the first bytes to find the real format, so a PNG renamed to .jpg is still reported as PNG.
The pixel size comes from createImageBitmap, which decodes the image in memory. The preview uses a temporary blob: address that only exists in this tab and is released (URL.revokeObjectURL) when you check another image or leave the page.
There is no upload form and no network request with your image. The page’s Content Security Policy only allows connections to this site and our analytics, and the checker sends nothing to either.

What the check cannot see

Whether text is readable at thumbnail size, or sits in an area a platform crops. Look at the image at half size before uploading.
Color profile and compression quality. Export in sRGB; Google Play names sRGB for its icon, and it is the safe default everywhere else.
Rotation from a camera’s EXIF data. The browser applies it when decoding, while some platforms may not.
Whether the content follows each platform’s content policy. That is reviewed by people and systems after upload.
Rules that change after our check date. Each row links to the page we read; when in doubt, the platform’s page wins.

SaaS launch checklist →

Sources

We read these pages on September 30, 2026. Every size and limit on this page comes from them.

Page	Date on the page	Checked by us
Meta for Developers: Images in link shares	no date given	Sep 30, 2026
LinkedIn Help: Make your website shareable on LinkedIn	no date given	Sep 30, 2026
Product Hunt: Preparing for launch	no date given	Sep 30, 2026
Chrome for Developers: Supplying images	no date given	Sep 30, 2026
Play Console Help: Add preview assets · Android Developers: Google Play icon design specifications	no date given	Sep 30, 2026
GitHub Docs: Customizing your repository’s social media preview	no date given	Sep 30, 2026
YouTube Help: Add custom thumbnails	no date given	Sep 30, 2026
App Store Connect Help: Screenshot specifications	no date given	Sep 30, 2026
Google Search Central: Favicon in search results	Aug 28, 2026	Sep 30, 2026
Android Developers: Google Play icon design specifications	no date given	Sep 30, 2026

FAQ

What size should an Open Graph image be?: Meta recommends at least 1200 × 630 px for the best display on high-resolution screens, at an aspect ratio as close to 1.91:1 as possible, and a file no larger than 8 MB. The minimum it accepts is 200 × 200 px. LinkedIn asks for at least 1200 × 627 px, so 1200 × 630 works for both.
What size are Product Hunt thumbnail and gallery images?: Product Hunt recommends a square thumbnail of 240 × 240 px and gallery images of 1270 × 760 px, and all images must be under 3 MB. At least two gallery images are needed before the gallery shows on your post.
What image sizes does the Chrome Web Store need?: A 128 × 128 PNG icon in the extension package, at least one screenshot of 1280 × 800 or 640 × 400 px, and a small promo tile of 440 × 280 px. A 1400 × 560 marquee tile is optional.
Is my image uploaded when I check it?: No. The file is read and decoded by your browser on your device. The page has no upload endpoint, and the temporary preview address is released as soon as you check another image or leave.
Why does the checker say “works, not ideal”?: The image meets everything the platform requires but misses a recommendation, for example a link preview below 1200 × 630 px or a thumbnail that is square but smaller than 240 × 240 px. It will upload; it may look softer or be cropped.

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