Ultimate Social Media
Dimension Guide
Say goodbye to awkwardly cropped photos. Use our universal pixel resizer to format your images perfectly for Instagram Posts (1080x1080), YouTube Thumbnails (1280x720), LinkedIn banners, and more.
Resize to Exact Web Dimensions
Switch to 'Width × Height' mode to enter exact pixel values.Upload multiple images for batch processing. Your files never leave your device. 100% free & private.
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Cheat Sheet: Essential Dimensions (2026)
| Platform & Format | Ideal Dimensions (Px) | Aspect Ratio |
|---|---|---|
| Instagram Square Post | 1080 x 1080 | 1:1 |
| Instagram / TikTok Story | 1080 x 1920 | 9:16 |
| Instagram Portrait | 1080 x 1350 | 4:5 |
| YouTube Thumbnail | 1280 x 720 | 16:9 |
| Facebook Shared Image | 1200 x 630 | 1.91:1 |
| LinkedIn Article Image | 1200 x 627 | 1.91:1 |
Resizing vs. Cropping
If you upload a 4000x3000 photo to our resizer and ask for 1080x1080, attempting to just "squish" it destroys the aspect ratio.
Our tool smartly resizes your image to fit the requested dimensions. When converting a landscape photo to a square, we recommend you utilize our Dedicated Image Cropper first to guarantee no vital details are cut out before final compression.
Mobile Display Limits
Social media platforms aggressively compress any image uploaded over their recommended dimensions to save server bandwidth.
If you upload a massive 5MB 4K image to Instagram, Instagram's algorithm compresses it (often badly). By pre-resizing your images to exactly 1080x1080px using our web tool, you maintain control over the compression algorithm and ensure maximum visual fidelity on mobile devices.