masstree.inJPG to WebP
Make website images load faster: convert JPG and PNG to WebP, usually a third smaller with no visible difference.
Runs in your browser — nothing is uploaded or stored on a server.
Settings
Metadata (EXIF, GPS) is always removed. Leave width and height empty to keep the original size. Each file row has crop and favicon-pack buttons; a rename pattern uses {n} for a number and {name} for the original name.
Result
Crop
Drag inside the box to move it, drag the corner to resize, or draw a new box.
Why WebP
Every modern browser shows WebP, and Google's page-speed checks recommend it. Smaller images mean faster pages and better search rankings.
Resize too
Set a maximum width like 1600 px for full-width images or 800 px for content images — most sites never need larger.
Transparency
PNG transparency is kept in WebP, so logos and icons convert cleanly.
Questions
Do all browsers support WebP?
Yes, all current browsers including Safari on iPhone.
How much smaller?
Typically 25–35% smaller than JPG at the same visual quality.
Is it private?
Yes, images never leave your device.