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Social media image sizes

Every size on this page comes from the platform's own help or developer pages. Where a platform doesn't publish a size, the table says so. Pick a row to open its checker.

Try it

PlacementVerified sizeChecker
YouTube thumbnail3840 x 2160 (16:9), at least 640 wide; Shorts 2160 x 3840Open
YouTube banner2560 x 1440 recommended, at least 2048 x 1152, safe area 1235 x 338, 6 MBOpen
LinkedIn profile photo400 x 400 to 7680 x 4320, 8 MBOpen
LinkedIn cover1584 x 396, JPG/PNG under 8 MBOpen
LinkedIn post photoat least 552 x 276, 1080 wide recommended, 3:1 to 4:5, 5 MBOpen
X header1500 x 500Open
X profile photo400 x 400, under 2 MBOpen
X post photoSingle photo 2:1 to 3:4 shows in fullOpen
Instagram postUp to 1080 wide, 1.91:1 to 3:4Open
Instagram story9:16 recommended, JPEG, 8 MBOpen
Facebook Page cover851 x 315, at least 400 x 150Open
Facebook Page profile picture320 x 320Open
TikTok video (posting API)360 to 4096 px per sideOpen
Not published by the platformFacebook feed post image size; TikTok in-app video size or ratio; X recommended post image pixels

How it works

  1. 1

    Find your network and placement in the table.

  2. 2

    Open the checker to test your file.

  3. 3

    Use the aspect ratio calculator to resize for any of these shapes.

Platform facts

FAQ

Where do these sizes come from?
Each row comes from the platform's help or developer pages, checked in October 2026.
Why are some sizes missing?
Some platforms don't publish them. Facebook has no feed image size, and TikTok has no recommended size for its app. We list them as not published instead of guessing.
Which size works everywhere?
None does. A 1080-wide image fits Instagram and LinkedIn's recommended width, but each network wants a different shape, so check each placement.

Optional next step

Post to LinkedIn, X or YouTube from your AI agent

UniPost connects Claude, Cursor, Grok Bot or any MCP client to your LinkedIn profile, X and YouTube, so you can schedule posts from a chat. Your first 2 accounts are free.

See how it worksBrowse all free tools

Related tools

Also see Schedule posts from Claude

Sources