Image Sizes for Social Media: Complete 2026 Guide
Posting the wrong size to social media is one of the most common mistakes. The result: blurry images, awkward cropping, or low-resolution uploads that look terrible next to professionally sized content.
This guide gives you the exact dimensions for every major platform in 2026 — Instagram, TikTok, YouTube, Twitter, LinkedIn, Facebook — and shows you how to resize images correctly for each.
Why Image Size Matters
Quality
Each platform compresses uploaded images. Starting with a higher-resolution source (and downscaling) gives the platform more data to work with, resulting in sharper final images.
Layout
Wrong aspect ratios trigger automatic cropping. A 1:1 photo posted to Instagram Stories (9:16) gets awkwardly cropped, hiding important parts.
Engagement
Posts with properly sized images get more engagement. They look professional, take up more screen real estate, and stand out in feeds.
File Size Limits
Some platforms have file size limits (e.g., 8MB for Instagram, 16MB for LinkedIn). Resizing helps you stay under limits without losing quality.
Instagram Image Sizes (2026)
Feed Posts
| Type | Dimensions | Aspect Ratio |
|---|---|---|
| Square | 1080 × 1080 | 1:1 |
| Portrait | 1080 × 1350 | 4:5 |
| Landscape | 1080 × 566 | 1.91:1 |
Recommended: 1080px wide. Square or 4:5 (portrait) takes the most vertical space in the feed.
Stories and Reels
| Type | Dimensions | Aspect Ratio |
|---|---|---|
| Stories | 1080 × 1920 | 9:16 |
| Reels | 1080 × 1920 | 9:16 |
Recommended: 1080 × 1920. Use safe zones (avoid top/bottom 250px for UI elements).
Profile Photo
| Type | Dimensions | Aspect Ratio |
|---|---|---|
| Profile | 320 × 320 | 1:1 |
Recommended: 320 × 320, but upload at higher resolution (e.g., 1080 × 1080) for retina displays.
Carousel
Each slide uses the same dimensions as feed posts. For maximum compatibility, use square (1:1).
TikTok Image Sizes (2026)
| Type | Dimensions | Aspect Ratio |
|---|---|---|
| Video cover | 1080 × 1920 | 9:16 |
| Profile photo | 200 × 200 | 1:1 |
| Photo post | 1080 × 1920 | 9:16 |
Recommended: 1080 × 1920. All TikTok content is vertical. Landscape images get black bars or cropping.
YouTube Image Sizes (2026)
Thumbnails
| Type | Dimensions | Aspect Ratio |
|---|---|---|
| Thumbnail | 1280 × 720 | 16:9 |
Recommended: 1280 × 720, minimum 640px wide. Use bold text and high-contrast imagery.
Channel Banner
| Type | Dimensions | Aspect Ratio |
|---|---|---|
| Banner | 2560 × 1440 | 16:9 |
Recommended: 2560 × 1440. Safe area for all devices is 1546 × 423 (centered).
Channel Profile
| Type | Dimensions | Aspect Ratio |
|---|---|---|
| Profile | 800 × 800 | 1:1 |
Twitter / X Image Sizes (2026)
| Type | Dimensions | Aspect Ratio |
|---|---|---|
| In-feed image | 1600 × 900 | 16:9 |
| Single image | up to 1600 × 1600 | varies |
| Header photo | 1500 × 500 | 3:1 |
| Profile photo | 400 × 400 | 1:1 |
Recommended: 1600 × 900 for in-feed. Header is 3:1 — landscape only.
LinkedIn Image Sizes (2026)
| Type | Dimensions | Aspect Ratio |
|---|---|---|
| Post image | 1200 × 627 | 1.91:1 |
| Article cover | 1200 × 644 | 1.91:1 |
| Profile photo | 400 × 400 | 1:1 |
| Cover photo | 1584 × 396 | 4:1 |
| Company logo | 300 × 300 | 1:1 |
Recommended: 1200 × 627 for posts. LinkedIn compresses more aggressively than other platforms, so start with high resolution.
Facebook Image Sizes (2026)
| Type | Dimensions | Aspect Ratio |
|---|---|---|
| Post image | 1200 × 630 | 1.91:1 |
| Cover photo | 851 × 315 | 2.7:1 |
| Profile photo | 180 × 180 | 1:1 |
| Story | 1080 × 1920 | 9:16 |
| Event cover | 1920 × 1005 | 1.91:1 |
Pinterest Image Sizes (2026)
| Type | Dimensions | Aspect Ratio |
|---|---|---|
| Standard Pin | 1000 × 1500 | 2:3 |
| Square Pin | 1000 × 1000 | 1:1 |
| Video Pin | 1000 × 1500 | 2:3 |
Recommended: 2:3 (portrait) Pins get more space in the feed.
General Best Practices
1. Use 72 DPI for Web, 300 DPI for Print
Web platforms don’t need high DPI — 72 is the screen standard. For print, 300 DPI is required.
2. Choose the Right Format
- JPG: Best for photos
- PNG: Best for graphics with text or transparency
- WebP: Smaller files, supported by most modern platforms
3. Use sRGB Color Space
sRGB is the standard for web. Photos in Adobe RGB or ProPhoto RGB may look dull when uploaded.
4. Avoid Over-Compression
Resizing to the target size is different from aggressive compression. Save at 85-95% JPG quality for the best balance.
5. Test on Mobile
Most social media consumption is on mobile. Verify your image looks good on a phone screen, not just on desktop.
How to Resize for Social Media
AmberPic’s Image Resizer makes this easy:
- Open the tool
- Upload your image
- Choose a preset (Instagram square, YouTube thumbnail, etc.) or enter custom dimensions
- Download the resized image
All processing happens locally — your images never leave your device.
Aspect Ratio Cheat Sheet
| Aspect Ratio | Common Use |
|---|---|
| 1:1 | Instagram feed, profile photos |
| 4:5 | Instagram portrait, Facebook |
| 9:16 | Stories, Reels, TikTok |
| 16:9 | YouTube, Twitter, landscape |
| 1.91:1 | Facebook posts, LinkedIn posts |
| 2:3 | |
| 3:1 | Twitter header |
| 4:1 | LinkedIn cover |
Frequently Asked Questions
What size should Instagram photos be? 1080px wide. Square (1:1) is the most common. Portrait (4:5) takes more vertical feed space.
What’s the best YouTube thumbnail size? 1280 × 720 (16:9). Minimum width 640px.
Can I use the same image for Instagram and Twitter? Yes, but the aspect ratios differ. Resize for each platform for best results.
What about LinkedIn cover photos? 1584 × 396 (4:1). Use the safe area of 1128 × 191 (centered) to ensure important content is visible on all devices.
Do platforms compress my uploaded images? Yes. All platforms apply some compression. Starting with a high-resolution source gives them more data to work with.
Conclusion
Using the correct image size for each platform is a small detail that makes a big difference. Properly sized images look sharper, take up more feed space, and appear more professional.
AmberPic’s Image Resizer is free, browser-based, and processes everything locally. Resize for any platform in seconds — no upload, no signup, no limits.