MAXScanner Guide
How to Compress Images for a Website
Learn a practical workflow for reducing image file sizes for web pages without unnecessarily sacrificing visible quality.
Why web image compression matters
Large images can increase the amount of data a visitor must download. Optimizing images can reduce page weight and improve the experience on slower networks or mobile devices.
The right target depends on the image dimensions, where it is displayed, the format and visual importance. There is no single KB value that is correct for every website image.
Resize before over-compressing
A common mistake is to keep a very large pixel dimension and rely only on aggressive compression. If an image is displayed at a small size, reducing its dimensions first can deliver a better quality-to-size ratio.
Next, choose a web-friendly format and optimize the encoding. Keep the original source so future edits do not start from a repeatedly compressed file.
Use the target size only when it solves a real constraint
Exact-size pages are especially useful for upload forms and APIs that reject files above a specific limit. For normal website images, optimize for the actual display size and visual quality rather than forcing every image to the same KB target.
Frequently asked questions
What is a good image size for a website?
There is no universal KB target. The useful target depends on the image dimensions, where it appears on the page, its visual importance and the connection speed you want to support. Avoid shipping far more pixels than the page actually displays.
Should I resize an image before compressing it for the web?
Usually, yes when the source dimensions are much larger than the displayed size. Resizing first often gives you a better quality-to-file-size balance than simply pushing compression harder.
Should I keep the original image after compression?
Yes. Keep a high-quality original separately and generate optimized copies for the website. That makes future crops, redesigns and alternate sizes much easier.
Try the tools mentioned in this guide
Use the tool that matches your actual requirement, then keep the original file as a backup.
Keep reading
How to Reduce Image Size Without Losing Too Much Quality
Understand the trade-off between image dimensions, JPEG quality and file size, and learn a practical order for optimizing photos.
Read the related guide →JPG vs PNG: Which Format Should You Use for Uploads?
Compare JPG and PNG for photos, screenshots, documents and forms, including file size, transparency and image quality considerations.
Read the related guide →