Image Converter
PNG, JPG and WebP — converted in your browser. Nothing is uploaded.
Choose images
PNG, JPG, WebP, GIF, BMP — multiple files supported
Choosing a format
PNG is lossless and supports transparency — right for logos, screenshots and graphics with sharp edges. JPG is lossy with no transparency, and much smaller for photographs. WebP usually beats both, typically 25–35% smaller than an equivalent JPG at the same visual quality, and it supports transparency too.
For the web, WebP is the sensible default in every current browser. Keep PNG only where you need pixel-exact lossless output.
Frequently asked questions
Why did my transparent PNG get a white background?
JPG has no alpha channel, so transparency cannot survive the conversion. This tool fills transparent areas with white rather than leaving them black, which is what an unfilled canvas would produce. Convert to WebP or PNG to keep transparency.
Are my images uploaded to a server?
No. Conversion uses the browser's own canvas API. Your images never leave your device, which also means the tool works offline once the page has loaded.
Why did my file get bigger?
Converting an already-compressed JPG to PNG will usually increase size, because PNG is lossless. Similarly, a very high quality setting can exceed the original. Lower the quality slider or choose WebP.