Images · Convert to WebP

Convert images to WebP on Mac

Make small, web-ready WebP images, lossy or lossless, with transparency kept.

Runs on your MacWebP encoder, one-click install

Three steps. That's it.

1
Drop your files
Drag files onto Convert to WebP, choose them with Choose Files, or right-click them in Finder.
2
Choose the options
Set what you need in the options panel, such as compression. Your choices are remembered for next time.
3
Get the result
The result lands in a new dated folder in Downloads › OneMacTools. Your originals are never changed.

What Convert to WebP does

Convert JPEG, PNG, HEIC, TIFF and RAW images to WebP, the format websites load fastest. Choose lossy compression with a quality slider, or lossless for graphics and screenshots, and optionally cap the size. Transparency is kept, and camera details are removed so the files stay small and private.

Uses Google's free WebP encoder, which OneMacTools installs for you with one click through Homebrew.

Options

Compression: lossy or losslessQuality from 40% to 100%Max size: 3840, 2048, 1600 or 1024 px

Great for

Speed up a website or blog by serving WebP images
Meet an upload form that asks for WebP
Shrink PNG screenshots for documentation

Questions about Convert to WebP

Does Convert to WebP upload my files?

No. Convert to WebP runs entirely on your Mac, so your files never leave it and it works offline.

Will Convert to WebP change my original files?

No. Results are saved as new files in a dated folder in Downloads › OneMacTools, and your originals are left exactly as they were unless you turn on an option that says otherwise.

What does Convert to WebP need?

macOS 26 or later and Google's free WebP encoder, which OneMacTools can install for you through Homebrew with one click.