Knowing the best image sizes for social media saves you from awkward crops, blurry uploads, and headers that cut off half a face. The dimensions below are widely recommended as of 2026, but every platform updates its specs from time to time, so treat the pixel numbers as a strong starting point and the aspect ratio as the durable part you can rely on.

How dimensions and aspect ratio work

There are two numbers that matter for any social image: the exact pixel size and the aspect ratio.

  • Pixel dimensions (like 1080x1080) tell the platform how many pixels wide and tall your image is.
  • Aspect ratio (like 1:1, 4:5, or 16:9) is the shape, regardless of how big the file is.

Here is the key insight: platforms re-compress and often re-crop whatever you upload. If you hand a feed a shape it does not expect, it crops to fit and your subject can end up clipped. If your image is far larger than needed, the platform shrinks and re-compresses it, which can soften details.

So the goal is simple: match the ratio the platform wants, hit a sensible pixel size, and let the platform do as little extra work as possible. Ratios change far less often than exact pixel recommendations, which is why we lean on them.

Best sizes by platform

Here is a quick reference for the most common posts. These are commonly recommended dimensions as of 2026; always check the platform's current official guidelines before a big campaign.

  • YouTube thumbnail: 1280x720 (16:9)
  • Instagram square: 1080x1080 (1:1)
  • Instagram portrait: 1080x1350 (4:5)
  • Instagram Stories and Reels: 1080x1920 (9:16)
  • Facebook shared link image: 1200x630
  • Facebook feed photo: 1200x1200
  • X / Twitter in-stream image: 1600x900 (16:9)
  • LinkedIn shared image: 1200x627
  • Pinterest pin: 1000x1500 (2:3)

If you only remember the ratios, you are most of the way there. A 9:16 vertical works for Stories and Reels across most apps, and 16:9 is the safe landscape shape for video thumbnails and in-stream images. You can match any of these in seconds with the Resize Image tool, which runs entirely in your browser with no upload and no signup.

The Open Graph / social share image

When someone pastes your article link into a chat or feed, the preview card they see is driven by your Open Graph image.

  • The standard size is 1200x630, which is roughly a 1.91:1 ratio.
  • This same image is used for link previews on Facebook, LinkedIn, and X, so one well-sized file covers all three.
  • Keep important text and logos away from the very edges, since different surfaces crop slightly differently.

A clean OG image is one of the easiest wins for click-throughs because it controls the first impression of every shared link.

<meta property="og:image" content="https://example.com/share-1200x630.jpg">
<meta property="og:image:width" content="1200">
<meta property="og:image:height" content="630">

Profile and cover images

Profile pictures and cover/banner images are the specs that change most often, so this is the section to double-check before you design.

  • Profile photos are usually displayed as a circle or rounded square, so center your subject and avoid important detail near the corners.
  • Cover and banner images vary a lot between platforms and are frequently re-sized on mobile versus desktop.
  • Because these numbers shift, verify the current official dimension for each platform rather than trusting an old template.

A safe habit: design your cover with a generous safe zone in the middle third, so it still looks right even if the platform crops the edges after an update.

Export tips

Once you know the target shape, a few habits keep your images sharp and light.

  1. Export at the exact target size. Sending a 4000px image where 1080px is needed just invites extra re-compression.
  2. Compress after resizing, not before, so you control quality at the final dimensions.
  3. Consider exporting at 2x (for example 2160x2160 for a 1080 square) when you want crisp results on high-density retina displays, then compress to keep the file reasonable.
  4. Prefer JPG for photos and PNG for graphics with text or flat color.

A practical flow is to resize to the platform shape, then run the file through the Image Compressor to shrink the file size without an obvious quality drop. If you are sizing images for a site rather than a feed, our guide on how to compress images for a website walks through the same idea for page speed.

FAQ

Do exact pixel sizes really matter, or just the ratio? The ratio matters most because it controls cropping, and ratios rarely change. Hitting a recommended pixel size on top of the right ratio just helps the platform avoid heavy re-compression.

Why does my uploaded image look blurry? Usually it is too small for the slot, or so large that the platform re-compressed it hard. Export close to the target size and compress yourself for more control.

What is the safest all-purpose share image size? 1200x630 (about 1.91:1) is the standard Open Graph size and covers link previews on Facebook, LinkedIn, and X with a single file.

Will these sizes still be correct next year? The ratios should hold, but platforms update pixel specs, so re-check the current official guidelines before important launches. Treat this list as a reliable starting point, not a permanent guarantee.

Resize to the right size in seconds

You do not need heavy software to get this right. Open the Resize Image tool, pick the dimensions or ratio you need, and export a perfectly sized file. It works right in your browser, with no upload and no signup, so your images never leave your device.