Complete reference for social media image dimensions with platform-specific requirements.
Platform Requirements
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Portrait (4:5) gets more screen real estate in feeds. Stories are 9:16 vertical.
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Cover photo displays differently on mobile (640x360px visible area). Center important content.
Twitter/X
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16:9 images display best in timeline. Square images get cropped.
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Professional photos perform better. Avoid filters and heavy effects.
TikTok
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Vertical 9:16 is required. Horizontal content gets letterboxed.
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2:3 vertical pins perform best. Taller pins get more visibility in feed.
Frequently Asked Questions
Find answers to common questions about our tool and how it works.
1080x1350px (4:5 portrait) takes up the most feed space. 1080x1080px (square) is also standard. Avoid landscape - it appears smaller in feeds.
Instagram compresses images. Upload at exactly 1080px width to avoid resampling. Higher resolution images get downscaled and can lose sharpness.
Upscale if your source is below platform minimums. But don't upscale beyond platform recommendations - a 4000px image will be compressed to 1080px anyway.
JPEG for photos (smaller file, good enough quality). PNG for graphics with text or transparency. All platforms accept both.