JPG to WebP: Convert a Folder of Photos in Your Browser

Moving a site's photos to a newer format

Many site owners reach this page after a speed report suggests serving images in a next-generation format. The job is simple on paper and tedious in practice, because a site can have hundreds of JPG files. This converter takes a whole batch in one go.

Drop JPG pictures on the page or click to choose them. You can add a single file, many files, or a folder. Each picture is converted as it arrives and shows its size before and after, so you can see what the change gives you on every file.

What you can set

Lossless keeps every pixel the JPG holds. Note that the JPG itself was already compressed, so lossless WebP stores that result faithfully rather than restoring detail. A normal quality setting is usually the better trade for photographs on the web.

A change to any setting converts every picture in the list again, so you can test a quality level on the whole batch.

Three ways to get your files back

• Download WebP saves a single converted picture.
• Download all as ZIP bundles the batch into one archive.
• Save all to a folder writes the files straight into a folder you pick, which saves unzipping. It needs a browser that allows folder access.

Start over clears the list and lets you begin with a new set.

Checks before you replace anything

Keep your original JPG files. If the converted version is not smaller for a particular picture, the page will show that in the before and after sizes, and in that case keeping the JPG is fine. Look at a few results at full size, especially skies and skin, where blocky areas show first.

• Match the Size setting to the biggest width the image is displayed at.
• Choose Keep date, remove location when publishing photos taken on site.
• Check your platform accepts WebP uploads before you bulk replace.

If you plan to replace images across an entire site, our guide to speeding up a small site puts image work in context with the other fixes that matter.

When to leave a JPG alone

Converting a file that is already tiny gains little. Photos that will be handed to a printer, or to a person whose software may not open WebP, are better left as JPG. Sending a WebP file in an email attachment can also cause trouble for recipients on older software.

Choosing a quality level for different pictures

Not every photo needs the same setting. A busy street scene hides compression well, because the eye is busy. A clear sky, a soft studio backdrop or a face in close up shows blockiness sooner. Try the slider on the hardest picture in your batch, then keep that value for all of them.

• Product photos with a plain background need the most care, since flat areas show banding first.
• Blog header photos can often go lower in quality when the image is mostly texture.
• Team portraits deserve a higher setting than scenery, because people look at faces closely.

Because a change reconverts the whole list, you can compare settings quickly and keep the files from the one you like best.

Reading the size column

Each finished row shows the original size and the new size. A very large drop usually means the source was saved at a high quality or a big pixel size, which is typical of phone and camera files. A small drop means there was little left to remove, so look at the Size setting instead. If the new file comes out larger, keep the original.

Frequently asked questions

How do I convert JPG to WebP?

Drop your JPG files on the page. They convert on the spot, and you can download each one, or all as a ZIP.

Can I convert a whole folder at once?

Yes. You can add a folder, and the Save all to a folder button writes the results into a folder you choose.

What does the lossless option do?

It keeps every pixel of the JPG as it is, with no further loss. The file is often larger than a normal quality WebP.

Can I remove the location from my photos?

Yes. Under Photo details, choose Keep date, remove location, or Remove all.

Will the converted file always be smaller?

Usually, but not always. The page shows the size before and after for each picture, so you can see.

Does my photo leave my computer?

No. The conversion runs inside your browser and your photos never leave it.

More free tools

• PNG to WebP: Convert PNG files to WebP in bulk, with lossless or quality and size options.
• WebP to JPG converter: Convert WebP to JPG with a quality slider, size limit, background colour and photo detail rules.
• Compress JPEG: Shrink JPG photos by quality or to a size in KB, with resizing and photo detail removal.
• image converter: Convert a mixed set of pictures to JPG, PNG, WebP, AVIF or ICO in your browser.
• image compressor: Compress pictures to a quality level or a target size in KB, with a before and after view.