KeroTools

Image Compressor For Website

Large images are the #1 cause of slow websites — our Image Compressor shrinks file size without visible quality loss, which directly helps page speed and Core Web Vitals.

No uploads — 100% privateRuns in your browserFree, no account needed

Use Cases

  • Compressing hero and banner images that load above the fold

  • Optimizing a whole gallery of images before a site launch

  • Converting to a modern format that loads faster in every browser

  • Reducing bandwidth costs on sites with heavy image traffic

Tips & Best Practices

  • Images are usually the biggest chunk of a page's total weight — start there
  • WebP loads faster than JPEG/PNG in every modern browser
  • Compress before uploading — most CMSs don't do it automatically or well
  • Smaller images directly improve your Largest Contentful Paint (LCP) score

How It Works

  1. 1

    Upload Your Images

    Drag in one photo or a whole batch — JPG, PNG, WebP, and more are all supported.

  2. 2

    Set Your Quality Level

    Drag the quality slider and watch the before/after preview update in real time.

  3. 3

    Download the Compressed Files

    Grab each image individually or download the whole batch at once — instantly, no waiting.

Frequently Asked Questions

Significantly — on most sites, images make up 50%+ of total page weight, and are the single biggest lever for improving load time.

Yes, when possible. It's smaller than JPEG or PNG at the same visual quality and is supported by every modern browser.

The opposite — faster page load is a ranking factor, and smaller images with no visible quality loss only help.