Image Converter

Which format to pick

PNG is lossless and keeps transparency, which makes it right for screenshots, logos and anything with text or hard edges. JPG is the classic photo format: small files for photographic detail, no transparency, visible artifacts once the quality drops. WebP usually lands 25–35% below JPG at the same perceived quality and still supports an alpha channel. AVIF goes smaller again, but browsers can only decode it so far, so it is accepted as input and not offered as output.

How the conversion works

The image is decoded, drawn to a canvas and re-encoded by the browser itself. Nothing is uploaded, nothing is stored, and the tool keeps working offline once the page has loaded. The quality slider applies to lossy targets only — converting to PNG always reproduces the decoded pixels exactly.