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Drop image here or click to browseJPG, PNG, WebP — processed entirely in your browser
Frequently Asked Questions
What image formats does this support?
This compressor supports JPEG, PNG, WebP and most common image formats. You can also convert between formats — upload a PNG and download as WebP for better compression.
Is my image uploaded to a server?
No. All compression happens locally in your browser using the HTML5 Canvas API. Your images never leave your device. This also means there are no file size limits.
What is the difference between JPEG, PNG, and WebP?
JPEG uses lossy compression — smaller files but slight quality loss, best for photos. PNG uses lossless compression — larger files but no quality loss, best for screenshots and graphics with text. WebP is Google's modern format that achieves 25–34% smaller files than JPEG at similar quality.
Why does my PNG not compress much?
PNG uses lossless compression, so reducing quality has limited effect. For maximum PNG compression, try converting to JPEG (if no transparency needed) or WebP. For photos, JPEG at 70–80% quality typically gives the best size-to-quality ratio.
What quality setting should I use?
For web images: 70–80% JPEG gives excellent results. Below 60% shows visible artifacts. For WebP: 75–85% is comparable to JPEG 90%. For print: use 90%+ or PNG lossless.