The Wrong Goal
People often say they want to compress an image for the web, but what they really want is a page that loads fast without the image looking damaged. Those are not exactly the same thing.
If you chase the smallest possible file every time, you end up with ugly artifacts. If you ignore compression entirely, your pages get slow. The real target is the balance between speed and appearance.
What Usually Makes Web Images Too Heavy
- dimensions far larger than the page actually needs
- PNG used for photos that should be JPG
- exporting retina-sized assets for places where normal resolution is enough
- uploading originals straight from a camera or phone
How to Compress an Image for the Web
Step 1: Resize it first
If the image will display at 1200 pixels wide, do not keep it at 4000 pixels wide. Use Image Resizer first so you are not compressing unnecessary pixels.
Step 2: Compress the resized version
Open Image Compressor and start with a medium setting. That is usually the best default for blog images, product screenshots, hero images, and email graphics.
Step 3: Compare before publishing
Zoom to normal viewing size and check edges, text, and gradients. If the image still looks clean, you are done. If it looks soft, back off the compression.
Real Example: Blog Hero Image
A featured image exported from design software was 2400 pixels wide and 3.8 MB.
- Resized first to 1200 px
- Compressed afterward to under 300 KB
- Result: noticeably faster page load with no obvious quality drop on a normal laptop screen
When JPG, PNG, and WebP Matter
Format choice still matters. Photos usually compress better as JPG. Graphics with transparency may need PNG. WebP is useful, but if a workflow or platform forces another format, the practical answer is to optimize the dimensions and compression first.
Frequently Asked Questions
What is a good image size for the web? It depends on placement, but most web images do not need to be multi-megabyte originals.
Should I resize before compressing? Yes. That is one of the easiest wins.
How much compression is too much? The moment edges, faces, screenshots, or text start looking obviously damaged at normal viewing size.
Can I use this for screenshots too? Yes, though screenshots with tiny text need a lighter touch than large photos.
The Practical Workflow
For most websites, the sequence is simple: resize with Image Resizer, compress with Image Compressor, and publish the smallest file that still looks clean at the size users will actually see.