platform set
Social share image sizes
Almost every share-image cheat sheet on the web is a list of numbers with no source, copied from a previous list. This one is short for that reason: it holds the platforms whose own documentation we opened and could quote, and it says plainly which platforms are missing and why.
The numbers, and where each one came from
Facebook and the rest of Meta
Aim for 1200 × 630. 600 × 315 is the floor for the large layout, and an image smaller than 200 × 200 is refused outright rather than shrunk.
Source Meta for Developers — Sharing: images · read 2026-09-25
LinkedIn
A 1.91:1 ratio, which LinkedIn writes as 1200 × 627 — the same shape as Meta’s card, three pixels shorter.
Source LinkedIn Help — Images and videos in shares · read 2026-09-25
Pinterest
A 2:3 portrait, or 1000 × 1500. The one row here that is not a wide card, and the reason this page is a table rather than a single number.
Source Pinterest Business — Pinterest product specs · read 2026-09-25
The short answer
One 1200 × 630 image covers Meta and LinkedIn together. Pinterest needs a second, taller one — a crop of the first will not do, because 2:3 is a different shape rather than a different size.
What this page does not tell you
Every row above quotes a document we opened. These are the ones we could not write, and the difference between them is the point: a platform that publishes nothing is not the same as a platform whose page we could not read.
X
Both card pages were fetched on 2026-09-25 and neither serves its specification as HTML: docs.x.com returned a single character of text, and the older developer.twitter.com address returned none of the dimensions. The page is drawn by script after it loads, so there is nothing here anybody read.
YouTube
The same. The support article answers with 1.6 MB of markup whose only dimension belongs to a logo, because the article itself is assembled in the browser.
Instagram and TikTok
Not checked. That is a gap rather than a refusal, and it is written here so you know which of the two it is.
Make the files
The sizes on this page are the input. The tool below produces them, and nothing here is a step you have to do by hand.
Open the toolThe other set
Same rule, different platform.
This page carries 3 rows and every one of them names the document it came from and the date that document was read. Where a number was worked out here rather than quoted, it says so instead of borrowing somebody else’s citation. A row we could not source is listed above as unwritten rather than filled in from memory.