Social Media Image Sizes — Free, Fast & Private
Every social media platform has its own set of image dimensions, and they change more often than most people realise. Upload the wrong size and your photo gets cropped awkwardly, compressed aggressively, or displayed with black bars. This reference covers every major platform's current specifications as of 2026.
The most common mistake is using the same image across all platforms. An Instagram post at 1080x1080 looks fine on Instagram, but when you share the same file on LinkedIn (which prefers 1200x627), it gets cropped to a thin strip. Similarly, a YouTube thumbnail needs to be exactly 1280x720 — even a few pixels off and YouTube's compression algorithm treats it differently.
Portrait format (4:5 ratio, 1080x1350) consistently outperforms square on Instagram because it takes up more screen space in the feed. For stories and reels across all platforms, 1080x1920 (9:16) is the standard, but leave a 15% safe zone at the top and bottom for platform UI overlays — profile icons, captions, and interaction buttons will cover those areas.
File size matters as much as dimensions. Facebook recommends under 100KB for profile photos and under 1MB for feed images. Instagram compresses anything over 1MB quite aggressively. LinkedIn is more lenient but still re-encodes images above 2MB. Using MiniPx to compress your image to the right dimensions and file size before uploading gives you control over how your content looks, rather than leaving it to platform algorithms.
For the best results: resize your image to the exact pixel dimensions listed above, compress it to under 500KB using Smart preset, and export as JPEG for photos or PNG for graphics with text. This approach works across every platform and avoids the quality degradation that comes from letting platforms handle the resizing themselves.