Free Online Image Compressor
Shrink JPG, PNG, and WebP images for the web while keeping them sharp and clear.
Lower quality means a smaller file. Try 70–80% for photographs.
Your image is compressed locally in your browser. Nothing is uploaded. PNG does not use the quality slider; reducing the max width is the most effective way to shrink a PNG.
About the Image Compressor
Large images slow down websites and use more bandwidth. This free image compressor reduces file size by re-encoding your image at a chosen quality and, optionally, a smaller width. It handles JPG, PNG, and WebP files entirely in your browser.
How to get the best result
- Photographs: Use JPG or WebP at 70–85% quality. You will usually see a large reduction with little visible difference.
- Screenshots and graphics: PNG keeps sharp edges, but it is not always smaller. Resize the image to the dimensions you actually need.
- Transparency: PNG and WebP support transparency. JPG does not, so transparent areas become white.
- Website images: A width of 1200–1600 px is enough for most full-width hero images. Smaller cards rarely need more than 600 px.
How to compress an image
- Upload a JPG, PNG, or WebP image.
- Choose an output format, or keep the original format.
- Set a maximum width if the image is larger than you need.
- Adjust the quality slider, then click Compress image.
- Compare the before and after sizes, then download the result.
Frequently asked questions
Will compressing reduce image quality?
JPG and WebP are lossy formats, so some detail is removed. At 70–85% quality the difference is usually hard to see, while the file becomes much smaller.
Why is my compressed file larger?
The original may already be well optimized. Re-encoding can add overhead, especially for PNG. Try WebP, lower the quality, or reduce the dimensions.
Are my images uploaded?
No. Your browser does all the work and the file never leaves your device.