About The Image Compressor

The Image Compressor reduces a single image's file size by re-encoding it and, when needed, fitting it within maximum dimensions. It is meant for quick browser-side optimization before uploading images to a website, CMS, ticket, email, or chat thread.

Compression runs locally in your browser. The tool may keep the original file when recompressing would make the output larger.

How to Compress Images Online

1. Choose an image file from your device.
2. Adjust the JPEG/WEBP quality value if needed.
3. Open more options to choose Auto, WEBP, JPEG, or PNG, and set maximum dimensions.
4. Compress the image, review the size change and preview, then download the result.

Choosing Options Correctly

What does Auto output do?
Auto tests practical output choices and keeps the smaller useful result. If the original is already smaller, the tool may keep the original file instead of making it larger.

Why can PNG output be larger?
PNG is lossless and can be larger than JPEG or WEBP for photos. Use PNG when sharp graphics or transparency matter more than file size.

Common Use Cases

• Reducing screenshots or photos before sharing them.
• Preparing web images where smaller transfer size matters.
• Downscaling oversized images while compressing them.

Quick FAQ

Will my original file be changed?
No. The compressed output is a new file; the source image remains as it was.

Is the image uploaded?
No. Compression is designed to run locally in the browser.

Why is the output sometimes not much smaller?
Images that are already optimized, tiny, or mostly flat color may not shrink much without visible quality loss.

How should I choose quality?
Lower quality gives smaller files but more artifacts. Preview the result and stop before text, edges, or faces degrade too much.