Reduce Image File Size
Make large image files smaller so they are easier to upload, share, store, and use online.
Free PNG Compressor
Compress PNG Images OnlineReduce PNG File Size
Compress PNG images online for free and reduce their file size with intelligent browser-based compression.
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PNG · Up to 100.00 MB
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Files stay on your device
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Understanding image compression
What is image compression?
Image compression is the process of reducing the amount of data stored in an image file. The goal is to create a smaller file that is easier to store, upload, transfer, and use while keeping the image looking good.
The amount of compression possible depends on several factors, including the image format, dimensions, visual content, and how much the original image has already been optimized. Photographs, screenshots, graphics, and logos can therefore produce different results.
Compressing an image is different from simply changing its dimensions. Compression focuses on reducing the data stored in the file, while resizing changes the width and height of the image.
Smaller image
Same purpose, less file data
Original imageLarger file
↓
Compressed imageSmaller file
Actual file-size reduction varies by image and compression settings.
Compression vs. resizing
What is the difference between compressing and resizing an image?
Both techniques can reduce the amount of data associated with an image, but they solve different problems.
Image compression
Compression reduces the amount of data stored in the image file. It is useful when the image dimensions are already suitable but the file itself is too large.
- Reduces file size
- Keeps the same general dimensions
- Useful for uploads and storage
Image resizing
Resizing changes the width and height of an image. It can be useful when an image is much larger than the dimensions actually required.
- Changes image dimensions
- Can reduce pixel count
- Useful for oversized images
Why compress images?
Make your images smaller and easier to use
Image compression is useful when you want to reduce file size while keeping your existing images practical for everyday use.
Maintain Useful Quality
Find a practical balance between smaller file sizes and visual quality for everyday images.
Browser-Based Processing
Process supported images directly in your browser without installing additional image editing software.
Download Your Result
Once compression is complete, download the optimized image and use it wherever you need.
Supported formats
Compress popular image formats
Use the appropriate compressor for common image formats used across websites, applications, documents, and everyday devices.
JPG
JPG
JPG is widely used for photographs and images with many colors. It is often a good choice when reducing photo file sizes.
JPEG
JPEG
JPEG is commonly used for photographs and general-purpose images where keeping file sizes manageable is important.
PNG
PNG
PNG works well for graphics, screenshots, logos, and images where transparency or sharper details are important.
WebP
WebP
WebP is a modern image format designed to provide efficient file sizes while maintaining useful image quality.
How it works
Compress an image in four simple steps
Upload your image, choose your settings, compress the file, and download the optimized result.
Upload your image
Select a compatible JPG, JPEG, PNG, or WebP image from your device.
Choose your settings
Adjust the available compression settings to find the right balance for your image.
Compress the image
The image is processed and optimized to reduce unnecessary file size.
Download the result
Download your compressed image and use the smaller file on your website, documents, or other projects.
Browser-based image compression
Browser-based processing provides a convenient way to work with supported images without relying on a traditional server-side image processing workflow.
No account required
No software installation
Local browser processing
Download your result
Common use cases
When should you compress an image?
Smaller image files can be useful whenever upload limits, storage, sharing, or website performance are important.
Optimize images before uploading them to a website
Reduce photo sizes before sending them by email
Make ecommerce product images easier to upload
Reduce the size of images used in blog posts
Prepare images for online forms and applications
Reduce image storage requirements
Make images easier to share and upload
Optimize images before adding them to documents
Frequently asked questions
Image compression questions answered
Find useful answers about compression, supported formats, quality, file size, and browser-based processing.
What is an image compressor?+
An image compressor reduces the amount of data stored in an image file so the resulting file takes up less space. Depending on the format and compression settings, the file size can often be reduced while keeping the image visually useful.
What image formats can I compress?+
The compressor supports common formats including JPG, JPEG, PNG, and WebP. The amount of size reduction depends on the original image, its format, dimensions, and existing compression.
Will compressing an image reduce its quality?+
Compression can affect image quality depending on the settings used. A good compression workflow aims to reduce file size while keeping the resulting image visually suitable for its intended use.
Can I compress JPG images online?+
Yes. JPG images can be compressed to reduce their file size. This is particularly useful for photographs and other images that contain many colors and details.
Can I compress PNG images?+
Yes. PNG images can be compressed as well. PNG is commonly used for graphics, screenshots, logos, and images that may require transparency.
Can I compress WebP images?+
Yes. WebP images are supported. Compressing a WebP file can help reduce its size further when the original image still contains optimization opportunities.
Why should I reduce image file size?+
Smaller image files are easier to upload, transfer, store, and manage. For websites, reducing unnecessary image data can also help reduce the amount of data that needs to be downloaded by visitors.
Are my images processed in the browser?+
The compressor is designed for browser-based image processing. Supported compression operations can be performed locally in your browser rather than relying on a traditional server-side image processing workflow.
Does every image become much smaller?+
No. The amount of reduction depends on the original format, dimensions, image content, existing compression, and selected settings. Some images are already highly optimized and may have limited room for additional reduction.
Compress your image in seconds
Use the png compressor above to reduce your image file size and download the optimized result.
JPGJPEGPNGWebP