Image Compressor

Compress JPG or PNG images directly in your browser by reducing quality. Your image does not leave your device.

Select an image (JPG or PNG)

Quality

70% Lower = smaller size

Output format

What is Image Compression?

Image compression is the process of reducing the file size of an image while attempting to maintain acceptable visual quality. There are two main types: lossy compression (used by JPEG and WebP) reduces file size by discarding some image data that is less noticeable to the human eye, while lossless compression (used by PNG) reduces size without any quality loss. Compressing images is essential for faster website loading times, meeting email attachment size limits, and saving storage space on your device.

How to Use

Select a JPG or PNG image using the file picker above.
Adjust the quality slider -- lower values produce smaller files but with more quality loss.
Choose the output format (JPEG or WebP).
Click "Compress image" to generate the compressed version, then download it.

Frequently Asked Questions

What is the difference between lossy and lossless compression?

Lossy compression (JPEG, WebP) permanently removes some image data to achieve smaller file sizes. The quality loss is often imperceptible at moderate settings. Lossless compression (PNG) reduces file size without any quality loss but typically produces larger files than lossy methods.

What quality setting should I use?

For most purposes, a quality of 70-80% offers a good balance between file size and visual quality. For web images, 60-70% is often sufficient. For print or high-quality purposes, use 85-95%.