Select an image
Upload a JPG, PNG or WebP file from your device or drag it into the upload area.
Free tool
Free Online Image Compressor
Reduce JPG, PNG and WebP image file size, adjust output quality and download the result directly from your browser.
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Upload an image
Drag an image or select a JPG, PNG or WebP file.
Supported formats: JPG, PNG and WebP.
Maximum size: 20 MB.
How to use the tool
How to compress an image online
SG Hub's image compressor reduces JPG, PNG and WebP file size directly in your browser. You can adjust quality, change format and download the result without uploading images to a server.
Choose the format
Keep the original format or convert the image to JPG, PNG or WebP.
Adjust quality
Change the quality level to balance sharpness and final file size.
Configure the background
Preserve transparency in PNG and WebP or choose a custom color.
Compress and download
Process the image, compare original and final size and download the result.
Benefits of compressing images
Faster websites
Smaller images reduce loading time and improve the browsing experience.
Lower data usage
A smaller file uses less bandwidth when downloaded or shared.
Better mobile performance
Compression especially helps users browsing on mobile connections.
Easier file sharing
Reducing file size makes images easier to send by email, messaging or forms.
How to choose the quality level
Higher quality preserves more detail but usually creates larger files.
A medium quality level is often enough for websites, posts and general use.
Low quality can greatly reduce file size, but it may also introduce visible blur or compression artifacts.
Compare the preview and final size before downloading.
Privacy
Private browser compression
The image is processed locally with Canvas. The file is not sent to SG Hub or stored on a server.
JPG, PNG or WebP: which format should you use?
JPG
Suitable for photographs and files where smaller size matters. It does not support transparency.
PNG
Useful for logos, graphics, screenshots and files that need transparency.
WebP
Offers a strong balance between quality and size and is often a great option for websites.
Common use cases
- Optimize images before uploading them to a website.
- Reduce photo size before sending by email.
- Prepare images for social media.
- Reduce ecommerce product image size.
- Optimize screenshots.
- Convert photos to WebP.
- Reduce storage usage.
- Improve mobile loading times.
Compression limitations
PNG uses lossless compression and may not shrink much when keeping the same format.
Converting to WebP or JPG often reduces file size more than keeping PNG.
Very low quality may produce visible loss of detail.
The result depends on the original format, resolution and compression.
Other image tools
You can also resize images or convert files between JPG, PNG and WebP.
Related tools