Social Media Post Size Guide - Complete Dimensions Reference
Pixel sizes for Instagram, TikTok, X, LinkedIn, Facebook, and YouTube posts, stories, and thumbnails.
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Social Media Post Size Guide
Common export sizes. Platforms change occasionally — verify on official docs if something looks off.
TikTok
Twitter/X
YouTube
Why sizes matter
Wrong aspect ratio means the platform crops or letterboxes your image. Export at the size (or larger with the same ratio) so faces and text stay where you put them.
Platform notes
Square (1:1) and portrait (4:5) work best in feed. Stories/Reels are 9:16 at 1080×1920.
TikTok
Full-screen vertical only: 1080×1920.
X (Twitter)
Landscape 16:9 (1200×675) is the safe default. Expect heavy compression — start from a sharp source.
Square for updates; ~1.91:1 landscape for link-style cards. Keep text large enough for mobile.
Quick habits
- Export at or above the listed size; don't upscale junk
- Make platform-specific crops instead of stretching
- Design for phone-first — most feeds are mobile
- Keep on-image text large and high-contrast
Social Media Post Size FAQ
Common questions about social media image dimensions
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