Image Resizer by Size – Common Dimensions Guide

Frequently Asked Questions

What is the best image size for a website?

For most websites, hero images should be 1920×1080 or 1600×900 pixels. Product photos work well at 800×800 or 1000×1000. Thumbnails are typically 150×150 to 300×300. Always compress images after resizing to keep page load times fast — aim for under 300 KB per image.

What dimensions should I use for social media images?

Each platform has its own recommended sizes: Instagram posts are 1080×1080 (square) or 1080×1350 (portrait), Facebook cover photos are 820×312, LinkedIn posts are 1200×627, Twitter posts are 1200×675, and YouTube thumbnails are 1280×720. Using the correct dimensions prevents cropping and ensures your images look sharp.

What is the standard image size for email?

Email images should be 600–800 pixels wide to display properly across email clients. Most email templates use a 600px content width. Keep file sizes under 200 KB per image to avoid slow loading and spam filter triggers. Use JPEG for photos and PNG for graphics with text or transparency.

How do I resize an image without losing quality?

To minimize quality loss, always resize down (not up), keep the original aspect ratio to avoid distortion, and export in a high-quality format like PNG for graphics or JPEG at 85–95% quality for photos. Avoid resizing the same image multiple times — always start from the original file.