Social Media Post Sizes & Image Dimensions 2026: Complete Guide
TL;DR - Quick Answer
15 min readTips you can use today. What works and what doesn't.
Master social media post sizes and image dimensions for every platform. This complete guide covers post dimensions, profile pictures, cover photos, Stories, and Reels for all major social networks with pixel-perfect specifications.
Twitter (X) Image Sizes 2026
Twitter Profile Picture Size (Avi)
Twitter Avi Specifications
- Minimum Size: 400 x 400 pixels
- Recommended: 400 x 400 pixels (displays as circle)
- Maximum File Size: 2 MB
- Formats: JPG, PNG, GIF
- Aspect Ratio: 1:1 (square)
Twitter Avi Best Practices
- Use high-contrast images for visibility
- Center important elements (edges get cropped in circle)
- Avoid text on edges (will be cut off)
- Test on mobile and desktop views
- Use consistent branding across platforms
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Twitter Banner Specifications
- Size: 1500 x 500 pixels
- Minimum: 1500 x 500 pixels
- Maximum File Size: 5 MB
- Safe Zone: Center 1500 x 350 pixels
- Formats: JPG, PNG, GIF
Twitter Header Tips
- Keep important content in center 1500 x 350px
- Account for profile picture overlap (bottom left)
- Use brand colors and messaging
- Update seasonally for freshness
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Twitter Post Image Sizes
Single Image Tweets
- Recommended: 1200 x 675 pixels (16:9)
- Minimum: 600 x 335 pixels
- Maximum: 4096 x 4096 pixels
- Max File Size: 5 MB per image
Multiple Image Tweets
- 2 Images: 700 x 800 pixels each (7:8)
- 3-4 Images: 1200 x 675 pixels (16:9)
- Aspect Ratio: Varies by number of images
Twitter Card Images
Summary Card
- Size: 120 x 120 pixels minimum
- Aspect Ratio: 1:1
Summary Card with Large Image
- Size: 800 x 418 pixels
- Aspect Ratio: 1.91:1
Instagram Image Sizes 2026
Instagram Profile Picture
Profile Photo Specs
- Size: 320 x 320 pixels (displays as 110 x 110)
- Minimum: 110 x 110 pixels
- Aspect Ratio: 1:1 (circle display)
- Format: JPG, PNG
Instagram Feed Post Sizes
Square Posts
- Size: 1080 x 1080 pixels
- Aspect Ratio: 1:1
- Min Width: 320 pixels
Horizontal Posts
- Size: 1080 x 566 pixels
- Aspect Ratio: 1.91:1
Portrait Posts
- Size: 1080 x 1350 pixels
- Aspect Ratio: 4:5
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Instagram Stories
Instagram Story Specs
- Size: 1080 x 1920 pixels
- Aspect Ratio: 9:16
- Safe Zone: 1080 x 1680 pixels (center)
- Max File Size: 30 MB
Instagram Reels
Reels Dimensions
- Size: 1080 x 1920 pixels
- Aspect Ratio: 9:16
- Duration: Up to 90 seconds
- Max File Size: 4 GB
Facebook Image Sizes 2026
Facebook Profile Picture
Profile Photo Specs
- Size: 180 x 180 pixels (displays as 170 x 170)
- Mobile Display: 128 x 128 pixels
- Aspect Ratio: 1:1
Facebook Cover Photo
Cover Image Specs
- Desktop: 820 x 312 pixels
- Mobile: 640 x 360 pixels
- Minimum: 400 x 150 pixels
- Format: sRGB JPG, PNG
Facebook Post Images
Single Image Post
- Recommended: 1200 x 630 pixels
- Minimum: 600 x 315 pixels
- Aspect Ratio: 1.91:1
Link Preview Image
- Size: 1200 x 630 pixels
- Aspect Ratio: 1.91:1
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LinkedIn Image Sizes 2026
LinkedIn Profile Picture
Profile Photo Specs
- Size: 400 x 400 pixels
- Display Size: 300 x 300 pixels
- Maximum File Size: 8 MB
LinkedIn Background Photo
Background Image Specs
- Size: 1584 x 396 pixels
- Format: JPG, PNG, GIF
- Max File Size: 8 MB
LinkedIn Post Images
Single Image Post
- Size: 1200 x 627 pixels
- Aspect Ratio: 1.91:1
Link Preview
- Size: 1200 x 627 pixels
- Minimum: 552 x 289 pixels
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TikTok Image Sizes 2026
TikTok Profile Picture
Profile Photo Specs
- Size: 200 x 200 pixels minimum
- Recommended: 400 x 400 pixels
- Aspect Ratio: 1:1
TikTok Video Dimensions
Video Specs
- Size: 1080 x 1920 pixels
- Aspect Ratio: 9:16
- Duration: Up to 10 minutes
- Max File Size: 287 MB (iOS), 72 MB (Android)
YouTube Image Sizes 2026
YouTube Profile Picture
Channel Icon
- Size: 800 x 800 pixels
- Display: 98 x 98 pixels
- Safe Area: 400 x 400 pixels center
YouTube Channel Banner
Banner Image Specs
- Upload Size: 2560 x 1440 pixels
- Safe Area: 1546 x 423 pixels
- Min Size: 2048 x 1152 pixels
- Max File Size: 6 MB
YouTube Thumbnail
Thumbnail Specs
- Size: 1280 x 720 pixels
- Minimum Width: 640 pixels
- Aspect Ratio: 16:9
- Format: JPG, GIF, PNG
- Max File Size: 2 MB
Pinterest Image Sizes 2026
Pinterest Profile Picture
Profile Photo Specs
- Size: 165 x 165 pixels
- Recommended: 600 x 600 pixels
- Aspect Ratio: 1:1
Pinterest Pin Sizes
Standard Pin
- Optimal: 1000 x 1500 pixels
- Aspect Ratio: 2:3
- Min Width: 600 pixels
Square Pin
- Size: 1000 x 1000 pixels
- Aspect Ratio: 1:1
Threads Image Sizes 2026
Threads Profile Picture
Profile Photo Specs
- Size: 320 x 320 pixels (same as Instagram)
- Display Size: 150 x 150 pixels
- Aspect Ratio: 1:1
Threads Post Images
Single Image Post
- Square: 1080 x 1080 pixels (1:1)
- Portrait: 1080 x 1350 pixels (4:5)
- Landscape: 1080 x 566 pixels (1.91:1)
Best for engagement: Portrait (4:5) takes up more screen space
Bluesky Image Sizes 2026
Bluesky Profile Picture
Profile Photo Specs
- Size: 1000 x 1000 pixels (recommended)
- Display Size: Varies by device
- Aspect Ratio: 1:1
Bluesky Banner Image
Banner Specs
- Size: 3000 x 1000 pixels (recommended)
- Aspect Ratio: 3:1
- Safe Zone: Center content to avoid mobile cropping
Bluesky Post Images
Image Post Specs
- Maximum: 2000 x 2000 pixels
- Recommended: 1200 x 675 pixels (16:9) for links
- Up to 4 images per post
- Max file size: 1 MB per image
Image Optimization Tips
File Size Optimization
Compress Without Quality Loss
- Use tools like TinyPNG or ImageOptim
- Aim for under 200 KB per image
- Balance quality and load time
- Test on mobile devices
Format Selection
Best Formats by Use
- Photos: JPG for best compression
- Graphics: PNG for transparency and text
- Animations: GIF or MP4 (better quality)
- Logos: PNG or SVG for scaling
Resolution Best Practices
Screen Density Considerations
- 1x: Standard displays
- 2x: Retina/HD displays (recommended)
- 3x: High-density mobile screens
You're creating a professional brand logo for all your social media profiles. Which format gives you the best quality at all sizes?
💡 Tip: Think carefully before selecting your answer!
Quick Reference Chart
Design Tools for Social Media
Recommended Tools
Free Options
- Canva (templates for all sizes)
- GIMP (advanced editing)
- Pixlr (online editor)
- Remove.bg (background removal)
Paid Options
- Adobe Photoshop
- Affinity Photo
- Sketch
- Figma
Mobile vs Desktop Considerations
Responsive Design
Mobile Optimization
- Test on various screen sizes
- Keep text readable at small sizes
- Use high contrast for visibility
- Account for tap targets
Desktop Optimization
- Use full banner width
- Add detailed graphics
- Include more information
- Use subtle effects
Frequently Asked Questions
What size is a Twitter avi (profile picture)?
Twitter avi (profile picture) size is 400 x 400 pixels. This is both the minimum and recommended size. The image displays as a circle, so keep important elements centered. Maximum file size is 2 MB, and you can use JPG, PNG, or GIF formats.
What aspect ratio should I use for Instagram posts?
Instagram supports three aspect ratios: 1:1 (square, 1080x1080px), 1.91:1 (horizontal, 1080x566px), and 4:5 (portrait, 1080x1350px). Portrait (4:5) takes up most screen real estate on mobile and typically gets highest engagement.
Do social media image sizes change often?
Social media platforms update image specifications occasionally, typically 1-2 times per year. Always check official platform guidelines for the most current sizes. This guide is updated regularly to reflect the latest 2026 specifications.
What's the best image format for social media?
Use JPG for photographs and realistic images, PNG for graphics with text or transparency, and MP4 instead of GIF for animations (better quality, smaller size). Always compress images to under 200 KB when possible for faster loading.
Why are my images getting cropped on social media?
Images get cropped when they don't match the platform's required aspect ratio or when viewed on different devices. Always use platform-specific dimensions and keep important content within safe zones. Test posts on both mobile and desktop before publishing.
Should I create different images for each platform?
Yes, for best results create platform-specific images. While you can resize one image for all platforms, custom-designed content for each platform's dimensions performs better and looks more professional. Use design templates to speed up the process.
Conclusion
Using correct social media image sizes ensures your content looks professional across all platforms. From Twitter avi dimensions to Instagram Stories, each platform has specific requirements optimized for user experience.
Keep this guide bookmarked and refer to it when creating social media graphics. Remember to test images on both mobile and desktop devices before publishing.
Social Media Design Resources
- Instagram Filters Guide - Complete guide to seasonal filters and effects
- Destination Marketing Guide - Visual marketing for travel and tourism
- Free Instagram Image Resizer - Resize images for perfect dimensions
- YouTube Image Resizer - Thumbnails, banners, and more
- Free Social Media Tools - Complete toolkit for social media
Create pixel-perfect social media images today!
Need help managing your social media visuals? Try SocialRails for image resizing, scheduling, and multi-platform posting with automatic sizing.
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