How to Compress Images Without Losing Quality

Smaller images load faster and are easier to share. Here is how to shrink them while keeping them sharp — right in your browser.

Large photos slow down websites, bounce off email size limits and eat phone storage. The good news: most images can lose a large share of their file size with no difference you can see.

Step 1: Resize before you compress

A photo straight from a phone is often 4000 pixels wide. If it will be shown 1200 pixels wide on a web page, those extra pixels are pure weight. Use the Image Resizer first — halving the width and height cuts the pixel count by 75%.

Step 2: Pick the right format

Switch formats with the Image Converter, or use the focused PNG to JPG, JPG to PNG and WebP Converter tools.

Step 3: Choose a sensible quality level

The Image Compressor re-encodes your image at the quality you choose. For photos, a quality of 70–85% is usually indistinguishable from the original at normal viewing size. Compare the before and after preview, and if you can't see a difference, keep the smaller file.

If the compressed file comes out larger than the original (this happens with images that were already well optimised), keep the original — the compressor will warn you.

Step 4: Strip hidden data

Photos often carry metadata: camera model, date and sometimes GPS location. The Image Metadata Viewer shows what is inside and can save a clean copy — good for privacy and a few extra kilobytes.

Why browser-based compression matters

All of these tools run in your browser. Your images are processed on your own device and are never uploaded, which is faster and keeps private photos private.

Quick checklist

1. Resize to the size you actually need.
2. Use WebP or JPEG for photos, PNG only when you need transparency or sharp text.
3. Compress at 70–85% quality and compare.
4. Remove metadata before sharing publicly.