03
KEEP
Both files stay local on your device.
No upload, no cloud.
What it actually does
01
DECODE
PNG decoded by the browser.
Lossless source. Alpha channel preserved.
02
ENCODE
WebP written in lossless mode.
Roughly 30% smaller than the source PNG at pixel-for-pixel exact output.
04
BATCH
Drop a folder.
Each PNG becomes a WebP independently.
How it works
- Open morph.cool in any modern browser.
- Drop your .png file onto the drop zone, or click to browse.
- Pick WebP as the output format.
- Download your converted .webp file. Done in seconds.
0%Smaller
0%Lossless
Why it lives in the tab
PNG and WebP-lossless do the same job — pixel-perfect, alpha-supporting, lossless image storage. WebP just does it ~30% better, because its compressor is younger and smarter. The conversion is a pure win on file size with zero quality cost. We do it in the tab so the file never leaves your device.
Frequently asked
Will the WebP be lossless?
Yes — we default to lossless WebP for PNG sources. Pixel-for-pixel exact, with alpha intact.
How is WebP smaller than PNG?
WebP's lossless compressor is more sophisticated than PNG's DEFLATE. Same pixels, fewer bytes.
Does transparency carry over?
Yes. WebP supports proper alpha; PNG transparency converts cleanly.
Will browsers display WebP?
Every modern browser handles WebP natively (since ~2020). Older clients may not.
Lossy WebP for photos?
We default to lossless to match the PNG source. Drop into Artboard for lossy control.