Social Media Image Sizer

Upload one image and export it at 14 preset sizes for Facebook, X (Twitter), Instagram, LinkedIn and YouTube.

Each version is center-cropped to fill the frame, and all processing happens in your browser.

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Every size this tool exports

Upload a JPG, PNG or WebP image up to 20 MB and choose any of the 14 presets below. All of them are selected by default. Each output is a PNG at the exact pixel dimensions listed.

  • Facebook: Post 1200 × 630 (1.91:1), Cover 820 × 312, Profile 170 × 170.
  • X (Twitter): Post 1200 × 675 (16:9), Header 1500 × 500 (3:1), Profile 400 × 400.
  • Instagram: Post 1080 × 1080 (1:1), Story 1080 × 1920 (9:16), Landscape 1080 × 566 (1.91:1).
  • LinkedIn: Post 1200 × 627 (1.91:1), Cover 1584 × 396 (4:1), Profile 400 × 400.
  • YouTube: Thumbnail 1280 × 720 (16:9), Channel Art 2560 × 1440 (16:9).

Several presets share an aspect ratio even though their pixel sizes differ. The Facebook post, LinkedIn post and Instagram landscape frames are all roughly 1.91:1, which is also the shape used for most link-preview images. The X post, YouTube thumbnail and YouTube channel art are all 16:9. If an image is cropped well for one member of a group, it will be cropped the same way for the others.

The profile presets are all square (1:1), and so is the Instagram post. A square master image therefore exports cleanly to four presets with no cropping at all. The Instagram story is the only portrait preset. The Facebook cover (about 2.63:1), X header (3:1) and LinkedIn cover (4:1) are the widest shapes and the ones most likely to trim a subject.

Picking the master image by shape saves the most rework. If most of your posts go to feeds, a 16:9 or 1.91:1 master covers six presets with little loss. If you mainly publish stories or short-form video covers, shoot vertically and accept that the landscape exports will keep only a horizontal band from the middle.

Platforms revise their recommended dimensions from time to time, and upload tools often accept a range of sizes. Treat these presets as dependable defaults, and check the platform's help center when an exact specification matters, such as for paid ads.

How the center crop works

A photo rarely has the same shape as every frame it needs to fill. This tool never squashes or stretches an image. It uses crop-to-fill: it scales the image just enough to cover the whole frame, then trims the parts that overflow, keeping the center.

The calculation compares the source aspect ratio (width ÷ height) with the target's:

  • If the source is wider than the target, the full height is kept and equal strips are trimmed from the left and right. A 4000 × 3000 photo (4:3) exported as a 1080 × 1920 story keeps a centered strip 1,688 pixels wide from the original.
  • If the source is taller than the target, the full width is kept and equal strips are trimmed from the top and bottom. The same 4:3 photo exported as a 1500 × 500 X header keeps a centered band 1,333 pixels tall.
  • If the ratios already match, nothing is cropped and the image is only resized.

Because the crop is always centered, subjects placed near the middle of the original survive every preset. Faces, logos or text near an edge may be cut off in the extreme shapes, especially the 4:1 LinkedIn cover and the 9:16 story.

Avoiding blurry, cropped or rejected uploads

Most problems with social images come from the source file, not the resize. Check these before you generate:

  • Start large. Resizing down keeps detail, but resizing up cannot add it. YouTube channel art is 2560 pixels wide, so a 1200-pixel source will look soft there. Use the largest original you have.
  • Mind the profile-photo circle. Facebook, X and LinkedIn show square profile images inside a circle, which hides the corners. Keep important detail inside the central circle of the square export.
  • Leave safe zones on covers and channel art. Profile photos, buttons and responsive layouts overlap parts of cover images. YouTube channel art is cropped very differently on TV, desktop and mobile, so keep text and logos near the center.
  • Watch file size. Exports are lossless PNG files, so a photographic 2560 × 1440 image can be several megabytes. If a platform rejects the upload or compresses it badly, convert that one file to a high-quality JPG first.
  • Transparency: PNG keeps transparent areas from a transparent source, but some platforms fill transparency with black or white. Add a solid background if the result looks wrong after posting.

A faster workflow for multi-platform campaigns

Resizing one campaign image for five networks by hand usually means opening an editor, setting up 14 canvases and exporting each one. This tool does the whole batch in one step:

  • Drop your master image into the upload area.
  • Use Select All or Deselect All, then tick only the platforms you are posting to.
  • Click Generate, and review the preview grid for any preset where the center crop cuts off something important.
  • Download individual files with the download icon, or use Download All to save every version.

Files are named after your original, followed by the preset ID and the dimensions (for example launch-banner-ig-story-1080x1920.png). Assets stay sorted when you hand them to a scheduling tool or a teammate.

If one preset crops badly, reframe the master so the subject sits in the middle and generate again. You can also make a separate, differently framed version for that one frame. The image is decoded and drawn on a canvas inside your browser, so unreleased product shots and client creative are never uploaded to a server.

Frequently Asked Questions

Common questions about the Social Media Image Sizer

It exports 14 presets. Facebook: post 1200×630, cover 820×312, profile 170×170. X (Twitter): post 1200×675, header 1500×500, profile 400×400. Instagram: post 1080×1080, story 1080×1920, landscape 1080×566. LinkedIn: post 1200×627, cover 1584×396, profile 400×400. YouTube: thumbnail 1280×720 and channel art 2560×1440. You can generate any combination in one batch.

Sources & References

Platform Image Dimensions

Preset sizes reflect the image dimensions published in each platform's help and creative-specification pages at the time the tool was built. Platforms change specs without notice, so confirm critical placements before a campaign.

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