Image size is one of the biggest factors in website loading speed. Google's PageSpeed Insights almost always flags large images as a performance issue. Here's how to fix it.
Why Image Compression Matters
A typical unoptimized JPEG photo from a phone camera is 3-8MB. For a web page, images should ideally be under 200KB. That's a 95% reduction — and it's achievable without visible quality loss.
Google uses page speed as a ranking factor. Slow sites rank lower. Compressing images is one of the fastest ways to improve your score.
Lossy vs Lossless Compression
Lossy compression removes some image data permanently. JPEG uses lossy compression. At 80% quality, most people cannot tell the difference from the original but the file is 60-70% smaller.
Lossless compression reduces file size without removing any data. PNG uses lossless compression. The file is smaller but not as dramatically reduced as lossy.
Best Practices
Use our free Image Compressor to reduce your image size instantly in the browser — your files never leave your device.