Image Compression Guide

JPEG / JPG

Quality setting: 75–85% is sweet spot for photos. Below 60% causes visible artifacts.

Best for: Photos, complex images with gradients

Not for: Text, logos, transparency

PNG

Compression: Lossless. Use PNG-8 for simple graphics, PNG-24 for full color with transparency.

Best for: Logos, icons, screenshots, transparency

Not for: Large photos (use JPEG instead)

WebP

Savings: 25–34% smaller than JPEG, 26% smaller than PNG at similar quality.

Best for: All web images. Supported by all modern browsers.

Quality: 80–85 recommended

AVIF

Savings: 50% smaller than JPEG on average. Best compression ratio available.

Best for: Modern web where performance is critical

Note: Limited support in older browsers, use with fallback

GIF

Max colors: 256. Only use for simple animations. Replace with video (MP4/WebM) or CSS animations when possible.