How to Resize Images for Social Media — Complete Size Guide 2026

Every social media platform has its own ideal image dimensions. Post a photo at the wrong size and it gets cropped awkwardly, stretched, or displayed with black bars. Getting the sizes right makes your content look professional and maximizes engagement.

This guide covers the current (2026) image dimensions for all major social media platforms, plus how to resize your images to the exact right size using a free online <a href="https://www.iamuu.com/en/blog/image-resize-guide-composition-techniques/">image resize</a>r.

Instagram Image Sizes (2026)

Square post: 1080 × 1080 pixels (1:1 aspect ratio). Portrait post: 1080 × 1350 pixels (4:5 ratio). Landscape post: 1080 × 566 pixels (1.91:1 ratio). Stories and Reels: 1080 × 1920 pixels (9:16 ratio). Profile picture: 320 × 320 pixels (displayed as a circle).

Instagram compresses uploaded images, but starting with the correct dimensions prevents additional quality loss from resizing. Use the highest quality JPG or PNG within the size limits.

Facebook Image Sizes

Shared image (timeline): 1200 × 630 pixels (1.91:1 ratio). Shared link preview: 1200 × 630 pixels. Cover photo: 851 × 315 pixels (desktop), 640 × 360 pixels (mobile). Profile picture: 170 × 170 pixels (desktop), 128 × 128 pixels (mobile). Event cover: 1920 × 1080 pixels (16:9 ratio). Group cover: 1640 × 856 pixels.

Facebook supports PNG for images with text or logos (sharper text rendering) and JPG for photos. Avoid uploading images smaller than 600 pixels wide—Facebook will stretch them.

Twitter/X Image Sizes

Single image (timeline): 1600 × 900 pixels (16:9, recommended). Image with 2 photos: 700 × 800 pixels each. Image with 3 photos: left 700 × 800, right two 700 × 400 each. Image with 4 photos: 700 × 800 each (2×2 grid). Header photo: 1500 × 500 pixels. Profile picture: 400 × 400 pixels.

Twitter displays images differently on mobile vs. desktop. The 16:9 aspect ratio (1600×900) is the safest choice for a single image—it will not be cropped in the timeline on any device.

LinkedIn Image Sizes

Shared image (personal): 1200 × 627 pixels (1.91:1). Shared image (company page): 1200 × 627 pixels. Article featured image: 1200 × 627 pixels. Background/cover photo: 1584 × 396 pixels. Profile picture: 400 × 400 pixels. Company logo: 300 × 300 pixels.

YouTube Image Sizes

Video thumbnail: 1280 × 720 pixels (16:9). Channel banner: 2560 × 1440 pixels (16:9, safe area 1546 × 423 in center). Channel icon: 800 × 800 pixels.

YouTube thumbnails are critical for click-through rate. Use high-contrast colors, readable text, and a human face when possible. The file should be under 2MB.

TikTok Image Sizes

Video thumbnail: 1080 × 1920 pixels (9:16). Profile picture: 200 × 200 pixels.

Pinterest Image Sizes

Standard Pin: 1000 × 1500 pixels (2:3 ratio, recommended). Long Pin: 1000 × 2100–3000 pixels. Square Pin: 1000 × 1000 pixels. Profile picture: 165 × 165 pixels. Board cover: 600 × 600 pixels.

Pinterest favors tall, vertical images. The 2:3 aspect ratio (1000×1500) is the sweet spot—it is tall enough to stand out in the feed without being truncated.

How to <a href="https://www.iamuu.com/en/blog/image-resize-guide-composition-techniques/">Resize Images</a> to Exact Social Media Dimensions

U-Ultra/Unity offers a free <a href="https://www.iamuu.com/en/blog/image-resize-guide-composition-techniques/">image resize</a>r (https://www.iamuu.com/image/resize/) with preset dimensions for all the platforms listed above. Here is how to use it: Upload your image. Choose a preset (Instagram Square, Facebook Post, YouTube Thumbnail, etc.) or enter custom pixel dimensions. Choose resampling method—Lanczos for best quality, Bilinear for speed. Click Resize and download.

The tool maintains aspect ratio by default to prevent stretching. If you need an exact size regardless of the original aspect ratio, you can disable aspect ratio lock and crop to fit.

Tips for Social Media Image Quality

Always start with the highest resolution source image available. Resizing down (reducing dimensions) preserves quality; resizing up (enlarging) creates blur. Use PNG for images with text, logos, or sharp edges. PNG compression is lossless, so text stays crisp. Use JPG at 85-95% quality for photos—good quality with small file size. Use sRGB color profile for all social media images. Other profiles (Adobe RGB, ProPhoto) may display with incorrect colors.

Check your resized image on mobile before posting. Most social media consumption happens on phones, so what looks good on desktop might not work on a small screen.

Ready to resize your images? Use the free Image Resizer (https://www.iamuu.com/image/resize/) at U-Ultra/Unity with presets for every major social media platform.