How to use this tool
- Choose an image from your device.
- Choose an output format and quality level.
- Compress it in this browser, preview the result, then download it.
Practical uses
- Make an image smaller before sharing it.
- Prepare a lighter image for a website.
- Compare JPEG or WebP quality locally.
Limitations to know
- JPEG and WebP compression can reduce image quality.
- PNG is lossless and may not create a smaller file.
- Very large images are limited to protect browser memory.
Frequently asked questions
Are my images uploaded?
No. Processing happens in this browser.
Will compression always shrink a file?
No. A PNG or already compressed image may stay the same size or grow.
Related tools
- Image Resizer — Resize JPG, PNG and WebP images to exact dimensions without uploading them.
- Image Converter — Convert between JPG, PNG and WebP in your browser.
- Image Cropper — Crop an image to exact dimensions or useful social presets.