Size your image for X and LinkedIn.

1500 × 500 pixels, a 3:1 image. X shows all of it, on desktop and on a phone, and your profile photo covers part of its bottom left corner.

1584 × 396 pixels, a 4:1 image, as a JPG or PNG under 8 MB. LinkedIn shows all of it. Your profile photo covers part of its left side, and on an iPhone it covers most of the banner’s height there.

1080 × 1350, a 4:5 photo, is never cut. X shows a single photo of any shape whole, narrower when it’s taller than the column allows. In a set of 2 to 4, a photo wider than 20:17 can lose its sides; square or taller never does. Photos can be up to 5 MB.

1080 × 1350, a 4:5 photo, is the tallest LinkedIn’s feed shows. A single photo is shown whole across the feed; a taller one gets bars at its sides. Several photos scroll sideways at one size, each cut to fit.

400 × 400 pixels for both. Each shows it as a circle, so the corners never show. X takes a JPG, PNG or GIF up to 2 MB.

Choose it as the banner, then drag it in LinkedIn’s preview or its map until the part you want shows, and download it at 1584 × 396. It’s cut and resized in your browser, so nothing is uploaded.

Choose it as the banner, drag it in X’s preview until the part you want shows, and download it at 1500 × 500. Keep faces and words off its bottom left, where your profile photo covers it.

No. Everything is drawn in your browser, downloads included. Your images aren’t sent anywhere or stored, and the page sets no cookies.

Posts are drawn by the same code as Flaghand’s post previews, measured on x.com and linkedin.com. X’s profile was measured on x.com in October 2026, on desktop and at an iPhone’s 390 px width. LinkedIn’s profile follows LinkedIn’s own screenshots of its desktop and iPhone apps.