Social media image sizes cheat sheet (2026)

Every social platform expects images at slightly different dimensions, and getting it wrong means your carefully designed graphic gets awkwardly cropped, stretched, or padded with unwanted bars once it’s posted. Platforms also update their preferred sizes periodically as they redesign their apps and feeds, so it’s worth treating exact pixel dimensions as something to double-check against current platform documentation rather than memorizing once and forgetting.

This guide covers general sizing categories that tend to stay fairly stable across most platforms, along with a simple workflow for resizing images correctly before you post.

General sizing categories to know

Most platforms organize images into a few recurring categories, even if the exact pixel dimensions shift over time:

• Profile or avatar images: small, square or circular, need to stay legible at a tiny size.
• Cover or banner images: wide, horizontal, often with important content kept away from the edges since some platforms crop differently on mobile versus desktop.
• Feed post images: vary by platform, commonly square or portrait-oriented for feeds designed around mobile scrolling.
• Story or vertical formats: tall, full-screen vertical images designed for mobile viewing.
• Link preview / share images: generated when someone shares a link to your site, often called Open Graph images.

A general reference table

Format type	Typical shape	Common use
Profile picture	Square (displayed as a circle on most apps)	Account identity across all platforms
Cover/banner image	Wide horizontal	Facebook pages, LinkedIn profiles, YouTube channels
Feed post	Square or portrait	Instagram, Facebook, LinkedIn, X feed posts
Story/vertical	Tall vertical, full mobile screen	Instagram, Facebook, and similar story formats
Link preview image	Wide horizontal	Shared links on social platforms and in chat apps

Because exact pixel requirements change as platforms redesign their interfaces, always check each platform’s current official help documentation before finalizing dimensions for an important campaign, rather than relying solely on a fixed cheat sheet.

Resizing images for each format

Rather than creating a fully separate design for every platform and size, most people start with one high-quality source image and resize it as needed. Holsha’s free image resizer lets you set exact target dimensions and crop or scale accordingly, without needing design software. Keeping your original source image at a large enough resolution to begin with gives you flexibility to resize down for smaller formats without any loss of sharpness.

Accounting for platform-specific display contexts

The same image dimensions can display quite differently depending on where exactly it appears within a platform. A feed post might show the full image, while the same photo used as a thumbnail in a grid view or a search result could be cropped to a square regardless of its original aspect ratio. This is worth keeping in mind particularly for e-commerce and portfolio-style accounts, where a single photo often needs to work both as a full post and as a cropped thumbnail elsewhere on the same platform, without either version losing its key visual focus.

Keeping important content away from crop zones

Different platforms crop cover and profile images differently depending on whether someone’s viewing on mobile or desktop, and depending on the specific platform’s aspect ratio for that slot. A common mistake is placing a logo, text, or a person’s face too close to the edge of a cover image, only to have it cropped out on certain devices. A safer approach is to keep essential visual elements centered, with generous padding around the edges, so the image still looks intentional regardless of exactly how each platform crops it.

Link preview images (Open Graph)

When someone shares a link to your website in a chat app or social platform, most platforms generate a preview card using an Open Graph image defined in that page’s metadata. Getting this right noticeably improves how professional a shared link looks, since a missing or poorly sized preview image often results in a blank or awkwardly cropped card. Holsha’s free OG image generator creates properly sized link preview images without needing a design tool, which pairs well with broader on-page SEO work like the guidance in how to write a meta title and description.

Designing one source image that adapts well

Rather than designing a completely separate graphic for every platform and format, many people find it faster to design one strong source image at a generous resolution, then crop and resize variations from it for each specific placement. This works best when the core visual, like a product photo, a logo, or a key piece of text, is positioned centrally rather than near an edge, since that gives you room to crop to different aspect ratios (square, portrait, or landscape) without cutting off anything essential. Keeping text minimal and large enough to read at a small size also helps, since the same image might display as a tiny thumbnail in one context and nearly full-screen in a story format in another.

Reviewing how an image actually looks once posted

Even with careful resizing, it’s worth checking how an image actually renders on each platform after posting, rather than only previewing it in a design tool beforehand. Platforms sometimes apply their own additional compression or minor cropping adjustments on upload, which can occasionally shift how a carefully composed image appears in the live feed compared to your original file. Spot-checking a few posts across your most important platforms, particularly after any major design or template change, catches these small surprises before they affect a larger batch of content.

Keeping file sizes reasonable

Large images slow down both your own website (for Open Graph images specifically) and, in some cases, how quickly a platform can process and display an uploaded photo. After resizing to the correct dimensions, running the image through Holsha’s image compressor keeps the file lean without a visible quality difference, which is worth doing as a final step regardless of which platform the image is headed for.

Building a lightweight template library

If you regularly post across multiple platforms, it’s worth saving a small set of your own resized templates, correctly sized starting canvases for each format you use often, rather than rebuilding dimensions from scratch every time. Even a simple folder of blank canvases at the right pixel dimensions for your most-used formats can shave meaningful time off a regular posting routine, and it reduces the chance of accidentally uploading an oddly cropped or stretched image during a busy week.

Common mistakes

• Using one image size across every platform without adjusting for each one’s aspect ratio.
• Placing important text or faces too close to the edges of a cover or banner image.
• Forgetting to set an Open Graph image at all, resulting in a blank link preview card.
• Uploading an oversized, uncompressed file that slows down page loads or upload processing.
• Not double-checking current platform-specific dimensions before an important campaign launch, since they do change over time.

Summary

Social media image sizing comes down to matching a handful of recurring formats, profile, cover, feed, story, and link preview, to each platform’s current requirements. Start with a high-quality source image, resize it with Holsha’s free image resizer, generate link previews with the OG image generator, and always verify exact dimensions against each platform’s current documentation before a big campaign.