Image Compressor
Reduce the file size of a JPG, PNG, or WEBP image for faster-loading websites and smaller email attachments, with the compression quality adjustable to your needs, all processed in your browser.
About this image compressor
Large images are one of the most common causes of a slow-loading website, which directly affects both user experience and Google's page speed ranking signals. This tool shrinks an image's file size while letting you control exactly how much quality to trade off.
How image compressor works
The image is redrawn onto a canvas and re-encoded as a JPEG at your chosen quality level. Lower quality values produce smaller files at the cost of some visible detail, especially around sharp edges and fine text.
Common uses
- Speeding up a website by shrinking large photos
- Getting a photo under an email attachment limit
- Reducing storage space used by a photo library
- Preparing images for faster upload to social media
How to use this tool
- Choose your image.
- Set the quality level, from 0.1 to 1.0.
- Click Compress.
- Download the smaller file.
What to know before using it
0.8 to 0.9 quality is a safe range for photos destined for a website, with little visible difference from the original. Go lower, around 0.5 to 0.6, for thumbnails or background images where sharpness matters less.
Privacy and browser-first processing
Your image is compressed entirely inside your browser tab and is never uploaded to this server.
Frequently asked questions
What quality setting should I use for a website?
0.8 to 0.9 is a good default, it gives a meaningfully smaller file with very little visible quality loss.
Will this change my image format?
The compressed output is saved as JPEG, since JPEG compression is what achieves the size reduction. If you need a different format afterward, use the Image Format Converter.