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Every Social Media Image Size That Matters in 2026

2026-05-18

Short answer: You don't need 40 sizes — you need about ten. Below is the clean reference list of the dimensions that actually matter in 2026, with safe-zone notes so nothing important gets cropped. When you've got one image and need it in five aspect ratios, ToolKoala's social media resizer crops to each platform's exact size in your browser, no upload, no account.

The sizes that actually matter (2026)

Keep this list. Almost everything else is a variation of these.

  • Instagram square post: 1080 × 1080 (1:1)
  • Instagram portrait post: 1080 × 1350 (4:5)
  • Instagram 3:4 post: 1080 × 1440 (3:4) — accepted since 2025 and the shape the profile grid shows every post in (a 4:5 post loses a strip on each side there)
  • Instagram Story / Reel: 1080 × 1920 (9:16)
  • X / Twitter in-stream image: 1600 × 900 (16:9)
  • Facebook feed image: 1200 × 630 (~1.91:1)
  • LinkedIn shared image: 1200 × 627 (~1.91:1)
  • YouTube thumbnail: 1280 × 720 (16:9)
  • TikTok video / cover: 1080 × 1920 (9:16)
  • Pinterest standard pin: 1000 × 1500 (2:3)

A few notes that save reuploads:

  1. Never go below the listed size. Instagram keeps at most 1080 px across, so a bigger file buys nothing there: it is simply scaled down for you. YouTube is the exception and suggests thumbnails up to 3840 × 2160.
  2. Vertical wins on IG, TikTok, and Pinterest — portrait/9:16 fills more screen than square.
  3. YouTube thumbnails need to be at least 640 px wide (1280 × 720 is plenty). From the phone app the file must be under 2 MB, from a computer up to 50 MB. A PNG of a photo easily goes over 2 MB; a JPEG stays far under.

Safe zones (the part everyone forgets)

The canvas size isn't the whole story — each platform overlays UI on top of your image.

  • Stories / Reels / TikTok (9:16): keep text and faces in the middle two-thirds: the top ~250px (username, time) and bottom ~400px (caption, buttons, the like/share rail) get covered.
  • Profile/cover images: these crop differently on mobile vs desktop. Center your subject.
  • Link preview cards (Facebook/LinkedIn 1200 × 630): text near the edges can get clipped by rounded corners in some clients. Pad your margins.

Rule of thumb: design for the canvas, but assume the outer 10–15% is decoration, not content.

The fast way to hit every size

The annoying part isn't knowing the numbers — it's exporting one design into all of them. That's the whole reason I built the resizer.

  1. Open ToolKoala's social media resizer.
  2. Drop your image in.
  3. Pick the target presets (IG square, Story, YouTube thumb, etc.).
  4. Adjust the crop focus so faces stay centered.
  5. Download each — or all at once.

It runs entirely in your browser, so the image never uploads. Check DevTools → Network if you want to confirm.

The honest alternatives

  • Canva (free tier): genuinely great if you also want to design, not just resize. On the free tier you can start a design at any size, but the one-click Resize that turns a finished design into other sizes is a Pro feature (~$120/yr). Your designs live on their servers.
  • Manual crop in Photoshop / GIMP / Preview: total control, but you're punching in dimensions one at a time, which is exactly the tedium the resizer removes.
  • Figma: overkill for resizing, but if you're already designing there, just set frame sizes from the list above.

If you're building a brand from scratch, Canva is the better all-in-one. If you already have the image and just need it cropped to spec, fast and private, that's what the resizer is for.

FAQ

What size should an Instagram post be in 2026? 1080 × 1350 (4:5) or, since 2025, 1080 × 1440 (3:4) for portrait; 1080 × 1080 for square. The profile grid shows every post as a 3:4 cell, so a 3:4 post is the only one shown there uncropped. Instagram keeps at most 1080 px across, so a bigger file doesn't help.

What is the correct YouTube thumbnail size? 1280 × 720 (16:9) works everywhere. The minimum is 640 px wide and YouTube suggests up to 3840 × 2160. The file limit is 2 MB when you upload from the phone app and 50 MB from a computer.

What's the best image size for a LinkedIn or Facebook link post? About 1200 × 627 (LinkedIn) and 1200 × 630 (Facebook), both roughly 1.91:1. Keep important text away from the edges so it isn't clipped in the preview card.

Do I have to make a separate image for every platform? No — start from one high-res image and crop to each ratio. ToolKoala's resizer does all the presets at once, locally in your browser.

— Milo 🐨