About the Image Compressor
Large images slow pages and use up visitors' mobile data. This image compressor reduces JPG, PNG and WebP files directly in your browser. Set the quality with a slider, compare the original and compressed file sizes, and download one image or the whole batch. Because processing happens on your device, the images are never uploaded to a server, which matters for client work and unreleased product photos.
For most website photos, a moderate quality setting gives a much smaller file with little visible difference; check detailed images such as products or text graphics at full size before publishing. Compression works best combined with correct dimensions, so resize oversized images first, and consider converting to WebP or AVIF for further savings.
How to use it
- Add one or more JPG, PNG or WebP images.
- Adjust the quality slider and compare before and after sizes.
- Check important images visually at full size.
- Download the compressed files individually or as a batch.
Frequently asked questions
Are my images uploaded when I compress them?
No. The image compressor runs in your browser using JavaScript. Your files are processed on your device and downloaded straight from the page, so they are never sent to our server. This makes it safe for confidential client work, and it keeps working even on a slow connection once the page has loaded.
What quality setting should I use?
It depends on the image. Photos often look nearly identical at moderate quality settings while being much smaller. Graphics with text, sharp lines or flat colors may show artifacts sooner. Start in the middle, compare at full size, and lower the quality until you notice a difference.
Why is my PNG still large after compression?
PNG is a lossless format, so it cannot shrink as much as JPG or WebP for photographs. If the image is a photo, converting it to JPG or WebP usually saves far more. Keep PNG for graphics that need transparency or sharp edges.