Image Compression
Image compression is the process of reducing the file size of an image while maintaining an acceptable level of quality. 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.
Types of Compression
There are two types of compression:
- Lossless Compression: 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: 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. Compressing images is useful for:
- Faster Website Loading: Smaller images load faster, improving user experience and SEO rankings
- Save Storage Space: Free up hard drive space on your computer or mobile device
- Email Attachments: Reduce file size to meet email attachment limits
- Social Media: Optimize images for social media platforms with file size restrictions
- Bandwidth Savings: Reduce data usage when sharing images online
How to Use This Image Compressor
- Upload Images: Click "Upload Files" or drag and drop up to 20 images (JPEG, PNG, or GIF)
- Wait for Processing: Images will automatically start compressing. Watch the progress bar for each image
- Adjust Quality: Click on any thumbnail to adjust the compression level using the quality slider
- Compare Images: Click on the image preview to compare original and compressed versions
- Apply Settings: Click "Apply" to save your quality settings for that image
- Download: Download individual images or click "Download All" to get a ZIP file with all compressed images
Is It Safe to Compress Images?
Yes, our image compressor is completely safe to use. All processing happens in your browser - your images never leave your device. Your original files remain untouched on your system, so if you're unhappy with the compressed files, you can simply try again with different settings.
Supported Formats
- JPEG/JPG: Best for photographs and images with many colors
- PNG: Best for images with transparency or graphics with sharp edges
- GIF: Best for simple graphics and animated images