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Compress Image Online

Reduce image size instantly. No upload, 100% private, runs in your browser.

Compression Settings

Image Compression Guide

Optimize images with practical size and quality tradeoffs.

Use Imglio to compress images toward a 500KB target right in your browser. Upload one or more images, choose the target size, pick the output format, and let the tool process the files locally. The result aims to stay at or below the selected size when the source image allows it, but very small targets may require stronger compression or resizing.

Why Imglio? Imglio is made for quick, private image compression without a server upload step. It gives you clear file-size presets and local processing, while staying honest about the tradeoff: the final size depends on the image content, dimensions, and chosen format. You can also switch the output to JPG, PNG, or WebP from the settings panel.

How to Use

  1. Upload one or more images, or drag them into the upload box
  2. Choose 500KB in the target size setting
  3. Pick the output format, or leave it on original format
  4. Rotate any image if needed
  5. Click "Compress Now" and download the result when processing is done

Features

  • Compress one or multiple images in the browser
  • Target a practical 500KB output size instead of guessing settings manually
  • Choose to keep the original file format when possible
  • Rotate images before processing if the orientation needs a quick fix
  • Download compressed results from the results page
  • No source image upload to an Imglio server during compression

Tips for Best Results

  • Use WebP format
  • Avoid PNG for photos
  • Resize large images

Use Cases

  • Optimize website performance
  • Reduce email attachment size
  • Meet upload limits
  • Improve SEO speed score

Frequently Asked Questions

It depends on the image and the target size you choose. Imglio uses the selected file-size target and output format to reduce the file as much as it reasonably can while keeping the result usable.
Yes, Imglio is completely safe because your images never leave your browser. All compression happens client-side, so no one else can access your files.
Imglio supports JPG (JPEG), PNG, and WebP, the three most common image formats used on the web.

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Upload an image and compress it toward 500KB with a simple browser-based workflow.