How to Use the Image Compressor
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1
Upload or drag and drop a JPG, PNG, or WebP image.
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2
Adjust the quality slider to your desired balance of size and visual clarity.
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3
Select the target output format (WebP yields superior compression, JPG offers maximum legacy compatibility).
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4
Compare original and compressed sizes and click "Download Compressed Image".
Practical Example & Use Case
Common Real-World Scenario
Compressing a 4.2 MB digital camera JPG down to 480 KB (88% reduction) for instant web page loading.
Technical Notes & Limitations
Browser Engine Architecture
Lossless PNG compression in canvas is limited by browser encoders. For deep compression, converting PNG to WebP or JPG is recommended.
Frequently Asked Questions
Are my images uploaded to any remote server?
No. All compression algorithms execute locally in your browser using the HTML5 Canvas API.
Which format gives the smallest file size?
WebP usually achieves 25–35% smaller file sizes than JPEG at equivalent visual quality.
Why did my compressed file size increase?
If you select 100% quality on an already heavily compressed image, the re-encoded canvas stream can occasionally be larger.