NeroTool

Image Compressor

Reduce the file size of JPG, PNG and WebP images with an adjustable quality slider. Process up to 30 images at once and download the results as a ZIP — all locally in your browser.

Compress JPG, PNG and WebP images

Choose JPG, WebP or PNG output and adjust the quality slider to balance visual quality against file size. The browser creates the compressed output locally and reports the resulting file size next to the original.

Batch compression

Add up to 30 images at once, compress them all with the same settings, and download every result together as a single ZIP file.

Privacy and browser processing

The compressor is designed around local browser processing. Selected images are not intentionally sent to a NeroTool image-processing server.

Compress images without unnecessary quality loss

Image compression reduces file size so pages load faster, uploads finish sooner and storage use stays lower. The best setting depends on the image: photographs can usually tolerate more compression than screenshots, logos or text-heavy graphics.

Pick the right output

JPG is effective for photographs, while PNG can preserve sharp graphics and transparency. WebP can provide efficient web delivery when supported by the destination. Compare the compressed image at its intended display size instead of judging quality only at extreme zoom.

Need to change dimensions first? Use Resize Image. For format changes, open Image Converter.

Frequently asked questions

What's the best quality setting for web images?

Around 70–85% quality is usually a good balance between visible quality and file size for most photos.

Can I compress multiple images at once?

Yes. Upload up to 30 JPG, PNG or WebP images and download all the compressed results together as a ZIP file.

Which format compresses smallest — JPG, PNG or WebP?

WebP typically produces the smallest file for a given visual quality, though JPG remains the most universally supported for photos.

Are my images uploaded?

The compressor is designed to process selected images locally in your browser rather than uploading them to a remote NeroTool processing server.

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