Transparency: PNG supports alpha. Keep Transparent checked to preserve it; uncheck to fill a solid background.
Sizing: Set output width or height (or both). If one is blank, the other is computed by aspect ratio. Scale multiplies intrinsic size when width/height are blank.
Animated WEBP: This tool exports the first frame only (canvas limitation).
Quality: Converting WEBP (lossy) to PNG (lossless) won't restore lost detail; it just re-encodes pixels.
Privacy: 100% local - your image never leaves this page.
How sizes are chosen
Intrinsic size is the WEBP's pixel dimensions (naturalWidth x naturalHeight).
If width & height are both set, the canvas is exactly that size.
If only one is set, the other is derived from the intrinsic aspect ratio.
If neither is set, size = intrinsic x Scale (default 1x).
To prevent crashes, very large canvases are clamped to a sane limit.
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