Private browser tool

Compress Image Online

Compress JPG, PNG and WebP images directly in your browser. Choose quality, target size and output format without uploading your image.

Your image is processed locally in your browser and never uploaded to a server.

No uploadNo accountWorks locally in your browser.
Step 1

Upload image

Drop your image here

JPG, PNG or WebP. Processed locally in your browser.

Step 2

Choose settings

Advanced settings
Step 3

Download result

Download result

Your image is processed locally in your browser and never uploaded to a server.

Original image

Your preview will appear hereUpload an image to see dimensions and file size.

Compressed result

Compress an image to preview the result.Run compression to see output size and download the new file.

Private image compression for everyday files

This image compressor reduces file size by exporting your image through the browser canvas. It works best for photos, screenshots and web images that need to be smaller for email, websites or online forms.

You can keep the original format or export as JPG, PNG or WebP. JPG and WebP support quality-based compression. PNG is lossless in the browser, so it may not shrink as much as photo formats.

Some images cannot reach a very small target size without becoming unusable or changing dimensions. CompressResize reports the actual result honestly instead of promising an exact size every time.

Compress image FAQ

Are my images uploaded?

No. The selected image is processed locally in your browser and is not sent to a server.

Which output format should I choose?

WebP is usually best for small web files, JPG is useful for photos and PNG is best when transparency or lossless output matters.

Why is PNG not controlled by the quality slider?

Browser PNG export does not use quality compression like JPG or WebP. It preserves pixels and transparency, which can create larger files.