Why does every social media platform have its own format? And what can you do about it?
You have a great photo. You want to share it. On Instagram. On LinkedIn. Maybe a Pinterest pin. And oh right, Facebook too, plus a Story while you're at it. Before you know it you're dragging crop handles in Photoshop, fiddling with white borders, and discovering that the text you just perfectly positioned on Instagram gets cut off halfway. Or that the top of your head has disappeared on LinkedIn. Sound familiar? I understand that frustration better than anyone. You want to take photos, write, podcast, do your actual work. Not spend endless hours messing around with pixel dimensions that differ per platform. And the worst part? They keep changing too. What worked last year is no longer quite optimal this year.
Why is this such a mess in the first place?
It's not a conspiracy, even though it sometimes feels that way. There are a few logical reasons why we're stuck with this chaos.
Every platform has its own feed logic.
Pinterest was built as a visual search engine with a masonry layout, so long vertical pins (2:3) work better there. Instagram allows increasingly more vertical portrait (4:5), because that takes up more screen space on mobile. According to a
, Meta officially prioritizes 4:5 portrait posts in the feed over 1:1 square posts in 2026. LinkedIn is still caught somewhere between desktop and mobile, which is why you see square and landscape formats appearing there more often.
Mobile has changed everything.
Ten years ago, square was the standard. By now everyone scrolls vertically on a phone. Vertical mobile-first aspect ratios like 4:5 and 9:16 now outperform square images on most networks, as confirmed by
the most recent Hootsuite overview
. It makes sense that platforms adjust their recommendations accordingly.
Cover photos and headers look different on mobile than on desktop.
A Facebook cover photo or an X header that looks perfect on your laptop is often cropped halfway on your phone. That means for certain formats you need to account for a safe zone in the center,
.
Platforms are constantly experimenting.
Algorithms get adjusted, new formats roll out (think Reels, Shorts, Idea Pins), old formats fade into the background. A platform that stands still loses users. So they keep tinkering. It's not the whims of developers, even though it feels that way. It's a combination of technical logic, mobile usage, and commercial pressure to keep the platform attractive.
The currently recommended formats (reference date: May 11, 2026)
Below is an overview of the formats that work best right now for static images on the biggest platforms. I'm deliberately limiting this to what you need most often, otherwise it becomes an endless list. | Platform | Type | Recommended size | Aspect ratio | |---|---|---|---| | Instagram | Feed (portrait, recommended) | 1080 x 1350 px | 4:5 | | Instagram | Feed (square) | 1080 x 1080 px | 1:1 | | Instagram | Stories / Reels cover | 1080 x 1920 px | 9:16 | | Facebook | Feed post | 1080 x 1350 px | 4:5 | | Facebook | Link preview (Open Graph) | 1200 x 630 px | 1.91:1 | | Facebook | Cover photo | 820 x 462 px | approx. 16:9 | | LinkedIn | Feed landscape | 1200 x 628 px | 1.91:1 | | LinkedIn | Feed square | 1200 x 1200 px | 1:1 | | LinkedIn | Personal banner | 1584 x 396 px | 4:1 | | X (Twitter) | Feed image | 1600 x 900 px | 16:9 | | X (Twitter) | Header | 1500 x 500 px | 3:1 | | Pinterest | Standard pin | 1000 x 1500 px | 2:3 | | Pinterest | Idea Pin | 1080 x 1920 px | 9:16 | | TikTok | Video / cover | 1080 x 1920 px | 9:16 | | YouTube | Thumbnail | 1280 x 720 px | 16:9 | | YouTube | Channel banner | 2560 x 1440 px | 16:9 (safe zone in center) | | Threads | Square or portrait | 1080 x 1080 or 1080 x 1350 | 1:1 or 4:5 | Sources:
,
,
,
and the
Pinterest Business Help Center via PostFast
, all consulted on May 11, 2026. Note: this is a snapshot. For important campaigns, always double-check the official guidelines, as they sometimes shift by a few pixels.
A few practical rules of thumb
If you don't want to memorize all of this, these three rules will get you most of the way there. Always work with a minimum width of 1080 pixels. That's the universal baseline almost every platform falls back on. Think in aspect ratios, not pixels. Remember 4:5 for feed posts, 9:16 for Stories and vertical video, 1:1 for neutral, and 1.91:1 for link previews. Those four cover 90 percent of what you need. Keep important elements (faces, text, logos) away from the edges. Every platform crops slightly differently, and you don't want half your headline to disappear.
The quick fix
Right, this is all useful to know, but what you really want is to get a photo into the right format quickly. That's why I built a tool that does exactly that: you drag your photo in, choose your platform, and you get the image back at the correct size. Optionally with a clean border around it, handy for giving your photo some breathing room in a busy feed.
does the heavy lifting for you. No Photoshop, no fussing with canvas sizes, no hunting for the right pixel values. For all the options, head to the tool page (link coming once the tool goes live). Enjoy scrolling through your new, perfectly sized posts. And don't forget: what matters most is still the photo itself. The dimensions are just the frame around it.