Image Compression

In terms of digital files, compression is the act of encoding information using fewer bits than what is found in the original file. In other words, it is converting a large file into a smaller file.

Types of Compression

There are two types of compression: lossless compression and lossy compression.

• Lossless Compression: Removes empty, unnecessary, or duplicate bits from the original file, resulting in a smaller file with exactly the same quality as the original.
• Lossy Compression: Removes excess or unimportant bits from the original file, resulting in a smaller file with reduced quality. With lossy compression, the final file size depends on how much quality loss you can accept.

Why Would You Want to Compress Images?

Depending on the source of an image, the file can be quite large. A JPG file from a professional DSLR camera, for example, can be tens of megabytes. Depending on your needs, this file may be too large. Compressing this image would be very helpful.

Similarly, you may have large images on your phone. These images can take up a lot of hard drive space and prevent you from taking more photos. By compressing them, you can free up internal storage space and solve this problem.

How Does Image Compressor Work?

Our tool uses lossy compression to shrink image files. It supports three file types: PNG, JPG/JPEG, and GIF. This system intelligently analyzes uploaded images and shrinks them to the smallest possible file size without affecting the overall quality.

To get started, you need to upload images that you want to compress. You can upload up to 20 images at a time, and you can mix file types. In other words, you don't have to upload only JPGs and wait to download PNGs. Our server can automatically analyze the files for you.

First, click the “Select” button and navigate to your images. Once uploaded, you will see thumbnails of all your images arrive in the queue. You will be able to see their progress in real time as our server analyzes them.

As mentioned, our server will determine the ideal compression ratio to reduce the file size without reducing the quality too much. However, if you want more or less compression, you can control it. Tap the thumbnail of the image you want to change. Then, move the quality slider up or down until you find a file size/quality setting that suits you. When you're done, tap the “OK” button and repeat these steps with the next image.

When you are satisfied with the current batch, click the “DOWNLOAD ALL” button. This will download a ZIP file containing all of your compressed images. If you don’t need all of the images, you can click the “DOWNLOAD” button below each thumbnail to retrieve them individually.

Ready for another batch? Click the “CLEAR” button and start over. You can use this tool for free as many times as you need.

Is Image Compression Safe?

There is no reason to worry about the security of our free service. Your original files will remain intact on your system, so if you are not satisfied with your compressed files, you can simply try again. Moreover, our unmanned system purges all data after an hour, so you don't need to worry about the safety of your data.