How to Compress Images Without Losing Quality

Heavy images are the number-one cause of slow web pages. The good news: you can usually cut file size by 50–80% with no visible loss. Here is how.

1. Resize before you compress

A photo straight from a phone can be 4000 pixels wide, but a website rarely needs more than ~1600 pixels. Resizing to the size it will actually be displayed at is the single biggest saving you can make.

2. Choose the right format

Use WebP for photos when possible — it is smaller than JPG at the same quality. Keep PNG only for graphics that need transparency or crisp edges.

3. Tune the quality slider

For most photos a quality setting around 0.7–0.8 removes a lot of weight while staying visually identical. Drop too low and you will see blocky artifacts, so compare before downloading.

4. Strip what you do not need

Re-encoding an image (as our tools do) naturally removes bulky camera metadata, shaving off extra kilobytes.

Putting it together

Resize → convert to WebP → compress at ~0.75. Three quick steps, all in your browser, and your images stay private because nothing is uploaded.