Social Media Image Sizes Guide: Every Platform's Dimensions
Every social platform crops, resizes, or compresses images that don't match its expected dimensions — often cutting off exactly the part of the image that mattered. Here are the current dimensions for each major platform, and what actually happens when you ignore them.
Feed posts: 1080x1080px for square, 1080x1350px for portrait (4:5, the tallest ratio Instagram supports without cropping in feed), and 1080x566px for landscape. Stories and Reels: 1080x1920px (9:16). Profile picture: 320x320px minimum, displayed as a circle, so keep important content centered. Posting outside these ratios gets your image cropped automatically to fit, which frequently cuts off faces or text near the edges.
Feed image posts: 1200x630px is the safe standard that displays well across desktop and mobile. Cover photo: 820x312px on desktop, though it renders differently on mobile, so keep key elements centered rather than near the edges. Profile picture: 170x170px, displayed as a circle like Instagram.
TikTok
Videos and cover images: 1080x1920px (9:16), matching the full-screen vertical format the app is built around. Profile picture: 200x200px minimum. Since TikTok content is viewed full-screen on phones almost exclusively, there's little flexibility here — anything other than 9:16 gets padded with black bars or cropped.
X (formerly Twitter)
In-feed images: 1600x900px (16:9) displays without cropping in the timeline. Header image: 1500x500px. Profile picture: 400x400px, displayed as a circle. X compresses images more aggressively than most platforms, so starting with a reasonably sized file (not an enormous unedited photo) helps avoid additional visible quality loss on top of the platform's own compression.
YouTube
Thumbnails: 1280x720px (16:9), covered in detail in our YouTube Thumbnail Size Guide. Channel banner: 2560x1440px, with a centered safe zone around 1546x423px since the banner crops differently across desktop, mobile, and TV.
What Happens When You Get It Wrong
Uploading the wrong aspect ratio doesn't cause an upload error on most platforms — it silently crops or pads the image to fit, often removing exactly the part that mattered (a face, key text, a product). This is the most common reason a design that looked perfect in your editing software ends up looking cut off or awkwardly framed once posted.
A Practical Workflow for Multiple Platforms
Design at the largest dimension you'll need (typically the 9:16 vertical format for Stories/Reels/TikTok), then create platform-specific crops from that master rather than redesigning from scratch for each platform. Keep any critical text or faces within the center 80% of the frame so they survive minor cropping differences between platforms.
Keeping File Sizes Reasonable Across Platforms
Beyond correct dimensions, an unnecessarily large file gets compressed harder by the platform itself, sometimes introducing more visible artifacts than if you'd compressed it yourself first. Our Image Compressor handles JPG, PNG, and WebP directly in your browser before you upload anywhere.
Quick Reference Table
Instagram feed (square): 1080x1080px. Instagram Stories/Reels: 1080x1920px. Facebook feed: 1200x630px. TikTok: 1080x1920px. X in-feed: 1600x900px. YouTube thumbnail: 1280x720px.
More Free Tools for Creators
Browse the full list of free tools on NOVA FREETOOLS for other utilities that support content prep across platforms at no cost.
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