PNG is the transparency format — and resizing it must keep alpha edges crisp. Lanczos resampling handles rounded corners, soft shadows, and cutout photography without artifacts.
or drag and drop your image here
Supports JPG, JPEG, PNG, WEBP, SVG, GIF, HEIC, HEIF, BMP, TIFF, HDR, JP2, RAF, PSD
Drop transparent or opaque PNGs, 8-bit or 16-bit depth. Indexed-color PNGs expand to truecolor during processing.
Enter exact pixels or percentage. Lanczos handles downscaling cleanly — alpha edges stay smooth, no ringing or halos around transparent boundaries.
Output uses zlib DEFLATE compression — no quality loss beyond the resize itself. Alpha channel preserved, ICC profile maintained.
Convert images between these related converters
Naive PNG resizing introduces dark halos around transparent edges — a classic alpha-premultiplication bug. Our resizer handles alpha correctly, producing clean edges on rounded UI elements and cutout photography.
no edge halos or color fringing
quality loss is zero beyond the resize
PNGs never leave your browser tab
Design systems demand consistent PNG sizes across breakpoints, densities, and platforms. Resize PNG assets precisely so design handoff files match production specs — no developer guesswork, no pixel-hunting, no ad-hoc rescaling at build time.
Alpha handling, quality, density, and design-system patterns.
