Instagram post size and aspect ratios (2026)
For Instagram feed posts, 1080×1350 pixels (4:5 portrait) is the most common export size in 2026 because it uses more vertical space in the feed. Square posts use 1080×1080 (1:1). Stories, Reels, and vertical ads should be 1080×1920 (9:16). Designing at these exact dimensions avoids blurry scaling and awkward crops when you schedule with Postmixr.
TikTok and YouTube dimensions
TikTok videos are natively 1080×1920 (9:16). Export at that size so text and faces stay sharp. YouTube thumbnails should be 1280×720 (16:9) with high contrast and readable text at small sizes, that is the YouTube thumbnail size Google and creators still recommend. YouTube Shorts use the same 9:16 canvas as TikTok.
Facebook, Threads, Pinterest, and X image sizes
Facebook link and feed images often use 1200×630 (1.91:1) for previews. Threads image posts align with 1080×1350 portrait, similar to Instagram. Pinterest standard pins are 1000×1500 (2:3) for clarity in the home feed. X in-feed images are commonly 16:9 (1600×900) but also support square and portrait, check the table above before export.
- Use the quick links to jump to a placement row when you share this page with your team.
- Pair correct dimensions with our character counter so copy and creative both fit the platform.