Convert WEBP to JPG on Mac (Offline)

Images you save from websites are often WebP, and many apps and forms still won't take them. Macsential converts WebP to JPG on your Mac, one image or a whole folder at once.

Convert WEBP to JPG in Macsential

  1. 1

    Open Convert Images in Macsential's sidebar, or select the files in Finder and choose Quick Actions ▸ Convert Images….

  2. 2

    Drop the files on the page, or click Choose Files…. You can add as many as you like.

  3. 3

    Set Convert to to JPEG. Leave Quality at 85% or move the slider; higher is sharper and bigger. Turn Resize on only if you want smaller dimensions, and leave Keep metadata on to keep the camera, date and location data.

    Macsential Convert Images with photo.webp ready to convert, Convert to set to JPEG at Quality 85%, Resize off and Keep metadata on
  4. 4

    Click Convert. The .jpeg files are saved next to the originals, which aren't changed.

In our test

We converted a 1.0 MB WebP (the iPhone test photo saved as WebP at quality 80) to JPG at quality 85 %.

Samplethe iPhone photo as a quality-80 WebP with its metadata
Input1.0 MB, 4032 × 3024 px
Output3.2 MB (+209 %), 4032 × 3024 px
SettingsJPEG, quality 85 %, keep metadata on
Time0.17 s
MetadataCamera make and model kept, Date taken kept, GPS location kept, Color profile kept, Orientation kept
MacApple M1 Pro MacBook Pro, macOS 27.0.1

One sample file, measured with Macsential's converter on our Mac. Your files and Mac will give different numbers. How we measure

When WebP to JPG makes sense

Convert when an app, printer, older editor or upload form rejects WebP. JPG works almost everywhere. If you'll keep editing the image, or it has a transparent background, convert to PNG instead.

Quality and file size

Both formats are lossy, so converting re-compresses the image once more. At quality 85 % the loss is hard to see, and our 1.0 MB WebP became 3.2 MB (+209 %). WebP is the more efficient format, so the JPG is usually the bigger file at similar quality. Macsential saves the files as .jpeg, the same format as .jpg.

Metadata

Images from websites usually have their metadata stripped already. Our test WebP still had its camera data: with Keep metadata on, the camera model was kept and the GPS location was kept. Turn the switch off to leave such data out.

Batches

Drop a whole Downloads folder of WebP files; they're converted in parallel with one quality setting, and a file that can't be read doesn't stop the rest.

With what's built into macOS

Preview can open WebP files. Open one, choose File ▸ Export, pick JPEG and set the Quality slider.

Where it falls short

  • Apple doesn't document WebP support in Preview; it works in current macOS, but you'll find little help if it doesn't.
  • Exporting several WebP files means opening them all in Preview and selecting them in the sidebar, and Apple Community users report that batch exports sometimes skip files.

Related conversions

Questions

How do I convert WebP to JPG on a Mac?

Open the WebP in Preview, choose File ▸ Export, pick JPEG and save. For many files at once, drop them on Macsential's Convert Images and choose JPEG.

Why do I get WebP files when I save images from websites?

Many websites serve WebP because it's smaller than JPG or PNG at similar quality, and Safari and other browsers save the file in the format they received.

Does converting WebP to JPG lose quality?

A little, because the image is compressed again as JPG. At quality 85% the difference is hard to see.

Will the JPG be bigger than the WebP?

Usually, because WebP compresses photos more efficiently. In our test a 1.0 MB WebP became 3.2 MB.

Can I convert WebP to JPG from the command line?

Yes: sips -s format jpeg in.webp --out out.jpg reads WebP and writes JPEG on current macOS.

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