Free image compressor

A little, but at the default setting (75%) most people can’t see the difference on screen, while the file often gets much smaller. If you see blockiness, raise the quality and compress again.

No. Compression happens inside your browser, so your photos never leave your device. That also makes it fast, even for many files.

WebP is usually smaller than JPG at the same quality and works in all modern browsers, so it is a good choice for websites. Use JPG when a platform or email client asks for it.

Browsers can only save PNG files without compression, so a PNG often stays the same size. On Auto, PNGs are saved as WebP, which keeps transparency and is usually much smaller. Choose PNG if you need to keep the format.

Choose the size under Target file size, then add your image. The tool tries the highest quality that fits under the limit, and only makes the image smaller in pixels if quality alone isn’t enough. This is handy for job portals, government forms and email limits.

Rarely wider than the space they fill. 1600 to 2000 pixels covers full-width images on most screens; blog and product images are often fine at 1200 pixels. Resizing first saves the most bytes.