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JFIF to WebP

Convert .jfif images to WebP for free, many at once. Nothing is uploaded.

Files stay on your device

Drop images to convert them to WebP

Add one or as many as you like. They're converted on your device, so nothing is uploaded.

PNG, JPG, WebP, HEIC, AVIF, SVG, BMP, and GIF. As many as you like, or a whole folder.

Convert to
Smaller than JPG and PNG, for websites. Keeps transparency.
Format
Quality
85%

Lower makes smaller files. A picture that's already a WebP is kept as it is.

How to convert JFIF to WebP

Pictures saved from some websites on Windows end in .jfif. Add them here and download them as WebP, which is smaller for a website or blog. They're converted in your browser, so your images stay on your device.

  1. Step 1

    Choose your JFIF files
    Pick one or many, or drop them in.

  2. Step 2

    Keep WebP
    WebP is selected; set the quality if you like.

  3. Step 3

    Download the WebPs
    Save each one, or all of them in a ZIP.

What to expect

Supported inputs
JFIF, JPEG, and JPG files, and any other picture: PNG, JPG, WebP, HEIC, AVIF, SVG, BMP, ICO, or GIF.
What happens
Each picture is saved as a WebP at its full size, at 90% quality unless you choose another.
Limits
A JFIF is a JPEG, so the WebP can't bring back detail it already lost.

Private by design

Your images stay on your device

Mastershot processes your file locally in this browser. It does not need to be uploaded to a server, and you do not need an account to use the tool.

  • No upload
  • No signup
  • No watermark

Questions

A JPEG picture with a .jfif extension. Windows names some downloaded pictures that way.

Usually, by about a quarter at the same quality.

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