Image Compressor
Optimize and compress JPEG, PNG, and GIF images to reduce file size while maintaining quality
Drag & drop images here or click to browse (max 20 files)
About Image Compression
This online image optimizer uses a smart combination of the best optimization and lossy compression algorithms to shrink JPEG, GIF and PNG images to the minimum possible size while keeping the required level of quality.
How to use
- Upload up to 20 images using the button above
- Wait for the compression to finish
- Click thumbnails in the queue for quality setting
- Use the slider to control the compression level
- Mouse over images to compare original vs compressed versions
- Download individual images or all at once
What is Image Compression?
In terms of digital files, compression is the act of encoding information using fewer bits than what's found in the original file. Simply put, it means converting a large file into a smaller file.
There are two types of compression: lossless and lossy. Lossless compression is when the compression tool removes empty, needless, or duplicated bits from the original file. This results in a smaller file that has the exact same quality as the original. Lossy compression is when the compressor removes excessive or unimportant bits from the original file. This results in a smaller file but with a reduced quality. With lossy compression, how small you want the final file to be will depend on how much loss of quality you're comfortable with.
Why compress images?
Depending on the source of an image, the file could be quite large. A JPG from a professional DSLR camera, for example, could be dozens of megabytes. Depending on your needs, this could be too big. Compressing this image would be very useful.
Likewise, you might have large images on your phone. These images could be taking up a lot of hard drive space and preventing you from taking more photos. Compressing them could free up more internal storage, fixing this problem.
Is it safe?
Your original files stay on your computer and are never uploaded to any server. All compression happens in your browser. When you close the page, all your image data is cleared.
