Image Compressor

Large image files slow down websites, hurt Core Web Vitals scores, and get rejected by email clients and upload forms. Compressing images before publishing is one of the highest-ROI optimizations you can make — Google's PageSpeed Insights directly penalizes uncompressed images, and every 100ms of load time reduces conversions.

Most JPG and WebP images compress by 40–60% at a quality setting of 75–80% with no visible difference to the human eye. PNG files compress less aggressively (lossless only), but AVIF achieves the best overall ratios — typically 40–50% smaller than JPG at equivalent quality.

How the Image Compressor works

VIPToolkit's Image Compressor runs entirely in your browser using the HTML5 Canvas API. Upload a JPG, PNG, WebP, or AVIF file, adjust the quality slider, and watch the compressed file size and reduction percentage update in real time before you download anything. There are no server uploads, no queues, and no file size limits imposed by infrastructure — your images never leave your device.

Best use cases for compressing images online

Optimize product photos for e-commerce, reduce image weight before uploading to WordPress or Shopify, compress screenshots for documentation, shrink photos before attaching to emails, and prepare images for social media platforms that re-compress uploads anyway. Need to change the file type entirely instead of just shrinking it? Use the Image Converter after compressing.