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Convert images between PNG, JPG, and WebP formats instantly.
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Image Compressor
Compress images without losing quality - right in your browser.
Drag & drop an image, or click to browse
JPG, PNG, WebP — processed entirely in your browser
What is a image compressor?
This tool compresses JPG, PNG, and WebP images directly in your browser using the Canvas API - no upload to any server required. A live before/after slider lets you drag across the image to compare the original and compressed versions at any quality level before downloading.
How to use this tool
- 1Drag and drop an image, or click to browse and select one.
- 2Choose an output format (JPG, WebP, or PNG) and adjust the quality slider.
- 3Click Compress image - drag the slider on the preview to compare original vs compressed.
- 4Download the compressed result once you're happy with the size and quality.
Common use cases
Shrinking image file sizes before uploading them to a website for faster load times
Reducing photo sizes before emailing or sharing them
Comparing quality loss at different compression levels before committing to one
Converting a large PNG screenshot into a smaller JPG or WebP file
Good to know
Frequently asked questions
Is my image uploaded to a server?
No - compression happens entirely in your browser using the Canvas API. Your image is never transmitted anywhere.
Why is the quality slider disabled for PNG?
PNG is a lossless format - it doesn't have a quality setting the way JPG and WebP do. Switch to JPG or WebP if you want to trade quality for a smaller file size.
Which format gives the smallest file size?
It depends on the image, but WebP generally produces the smallest files for photos while maintaining good quality, followed by JPG. PNG is usually the largest unless the image has large flat areas of solid color.
Will compressing a transparent PNG as JPG look right?
JPG doesn't support transparency, so transparent areas are automatically filled with white before compressing. If you need to keep transparency, stick with PNG or WebP.
quick_facts.json
{
"runs_in_browser": true,
"data_sent_to_server": false,
"signup_required": false,
"price": "free",
"category": "Image Tools"
}