What does an image compressor do?
An image compressor reduces the amount of data in a file so it is easier to upload, share, or serve on a website. This tool accepts JPG, PNG, and WebP images, keeps their pixel dimensions, and creates a smaller encoded copy in your browser.
Compression is a balance. Lower quality can produce a noticeably smaller file, while a higher setting keeps more texture and fine detail. The queue shows the original and resulting sizes, giving you a quick way to decide whether the saving is worth the visual change.
What changes during compression?
The tool changes the way image data is encoded, not the width or height of the picture. JPG and WebP respond to the quality setting, while PNG output remains lossless and may not become smaller for every graphic.
How to Compress an Image
- Select one or more JPG, PNG, or WebP files.
- Choose a quality level; around 80% is a useful starting point for photographs.
- Compare the reported sizes, then download the compressed copies.
Choosing the Right Setting
- Web photos: Use a moderate quality setting to reduce page weight.
- Upload limits: Lower quality gradually until the file fits comfortably.
- PNG graphics: PNG encoding stays lossless, so its size may not fall as much as JPG or WebP.
Need a format change instead? Use JPG to WebP, PNG to WebP, or WebP to JPG.