How to reduce image file size without losing quality (5 techniques)

The most common question I hear is, "How do I make this image smaller without making it look worse?" Here are five techniques that work every time.

1. Switch to a modern format

This is the single biggest lever. Converting a JPEG to WebP saves 25-35% with no visible difference. Converting to AVIF saves 50-60%.

2. Remove invisible metadata

Every photo from a modern smartphone carries embedded EXIF data — camera model, GPS coordinates, date, settings. This metadata can add 50-200 KB per image. Stripping it removes zero visual quality and protects your privacy.