Image Compressor

What is image compression?

Compression reduces file size, usually by resizing dimensions and applying stronger JPEG/WebP compression. Smaller files load faster on websites and take less cloud storage.

How to use

1. 1Pick an image (JPEG, PNG, or WebP).
2. 2Adjust max dimension and quality / target size.
3. 3Compress and download the result.

Key features

Why compress images?

Large phone photos can be multiple megabytes, too heavy for blogs, forms, and chat. Compression keeps visuals acceptable while cutting bandwidth.

Common use cases

• Prepare hero images for landing pages
• Shrink attachments for email
• Batch optimize before uploading to slow hosts

Resize before you compress

• The largest saving usually has nothing to do with the quality slider. A photograph straight off a phone is often 4000 pixels wide, and if it will be displayed in a 1200 pixel column then three quarters of those pixels are being stored, transferred and decoded for nothing.
• Reduce the dimensions to what will actually be displayed first, then compress. The two together get far smaller than either alone, and the visible result is better than aggressive compression at full size.

Choosing a quality setting

• Between 70 and 85 is usually indistinguishable from the original on a photograph, and that is where most of the useful saving is. Below about 60 the artefacts around high contrast edges start to show, particularly around text and fine detail.
• Quality settings are not comparable between formats. JPEG quality 80 and WebP quality 80 are different amounts of compression, and WebP generally holds up better at the same number.
• Compression is lossy and cumulative. Compressing an already compressed image again compounds the loss, so always work from the original where you still have it.

Tips & best practices

Privacy & security