How to Compress Images Online

Compressly makes it easy to reduce image file sizes without sacrificing quality. Simply drag and drop your JPG, PNG, or WEBP files, choose your preferred compression level, and our tool will optimize them using smart algorithms that preserve visual fidelity.

Why Compress Images?

Faster website loading times and better Core Web Vitals
Reduced storage space and bandwidth costs
Easier sharing via email and messaging apps
Better SEO rankings with optimized page speed

Compression Levels Explained

Light: Best quality, 20-30% size reduction. Ideal for photography and print.
Balanced: Optimal quality-to-size ratio, 40-60% reduction. Perfect for web use.
Strong: Maximum compression, 70-80% reduction. Best for email and messaging.

Supported Image Formats

Our image compressor supports the most popular web image formats: JPEG/JPG for photographs, PNG for graphics with transparency, and WEBP for modern web optimization.

How Does Image Compression Work?

Image compression uses lossy and lossless algorithms to reduce file sizes. Lossy compression selectively removes data that is less noticeable to the human eye, while lossless compression restructures data more efficiently without any quality loss. Compressly uses a combination of both to achieve optimal results.