Image Compressor

Image compression reduces file size by removing data the human eye is unlikely to notice. Lossy compression (JPEG, WebP) permanently discards detail, achieving much smaller files — typical web JPEGs at 80% quality are 70-90% smaller than uncompressed bitmaps with no visible loss. Lossless compression (PNG) preserves every pixel but compresses less aggressively, best for screenshots, logos, and images with text.

This tool runs entirely in your browser using the Canvas API — your images never leave your device. For photos, choose JPEG at 75-85% quality. For graphics with sharp edges or transparency, use PNG. WebP is a modern alternative that typically produces smaller files than both, and is supported by all modern browsers.

Compression matters for web performance: every 100KB shaved off an image improves page load time and Core Web Vitals scores, directly affecting SEO rankings. Google's PageSpeed Insights specifically flags oversized images, and mobile users on slow connections benefit most.