← Back to all posts

How to Reduce JPG File Size: Your Guide to Compressing Images to 20KB, 50KB, or 100KB

By Victor on September 12, 2025

How to Reduce JPG File Size: Your Guide to Compressing Images to 20KB, 50KB, or 100KB

A slow-loading website is one of the quickest ways to lose visitors. And what’s the number one culprit? Large, unoptimized images.

This is where image compression comes in. It’s the essential technique for reducing file size without sacrificing too much quality. In this guide, you’ll learn exactly how to compress JPG images to 20KB, 50KB, 100KB, or even 200KB, depending on your needs.


What Is Image Compression?

If you’ve ever asked, “how do I decrease the file size of a JPEG?”, you’re looking for image compression.

Image compression works by using algorithms to remove redundant data from a file. This makes the image smaller, but if done properly, it still looks crisp and clear to the human eye.

👉 The goal: find the balance where your image loads fast but still looks professional.


How to Compress an Image to a Specific Size

Different situations call for different compression levels. Here’s a quick breakdown:

🔹 How to Compress Image to 20KB

  • Best for: online forms, avatars, and small thumbnails.
  • Why: strict upload limits often require tiny file sizes.
  • How: use an image to JPG converter 20KB tool to automatically resize and compress.

🔹 How to Compress Image to 50KB

  • Best for: blog images, small product photos, and e-commerce sites.
  • Why: balances quality with faster load speeds.
  • How: run the file through an online image compressor and set the target size.

🔹 How to Compress JPG to 100KB

  • Best for: homepage hero images, banners, and high-visibility graphics.
  • Why: keeps detail without slowing down your site too much.
  • How: adjust compression settings to hit around 100KB.

🔹 How to Compress JPG to 200KB

  • Best for: portfolios, design showcases, or high-res visuals.
  • Why: maintains sharpness on large or retina displays.
  • How: use a JPG compressor that lets you choose a maximum file size.

The Easiest Way to Reduce JPG File Size

The simplest solution is to use an online image compression tool like the OpusTools Image Compressor:

  1. Upload your image (JPG, PNG, or TIFF).
  2. Choose your target size: 20KB, 50KB, 100KB, or 200KB.
  3. Download your optimized file instantly.

No more oversized images slowing down your website or being rejected by upload forms.


Final Thoughts: Mastering JPG Compression

Whether you need to compress an image to 20KB for an ID upload or reduce a JPG to 100KB for a blog post, image compression is the key to a smooth digital experience.

👉 Try the free OpusTools Image Compressor today and optimize your images in seconds.