Image Tools

JPG to WebP

Converts one JPG/JPEG image to WebP in your browser using the canvas encoder at a fixed quality of 0.92. WebP is often a smaller file than the equivalent JPEG, but the exact saving depends on the image.

Add Files

Process

Download

Processed in your browser — your file is not uploaded.

Drop your files here

or click to browse files

Up to 1 files

JPG → WebP conversion:

WebP is often smaller than JPEG at similar quality
Modern web format
WebP is supported by current major browsers

How to Use

1Drop a .jpg or .jpeg file onto the upload area, or click it to choose one.
2Only one file is accepted per conversion.
3Click 'Convert to WebP' and wait for 'Converting JPG to WebP...' to finish.
4Download the WebP file. If your browser cannot encode WebP, an error explains this instead.

About this tool

Updated September 19, 2026

Smaller files at similar quality

WebP generally compresses photographs more efficiently than JPEG, so the same picture usually comes out noticeably smaller.

That saving is the whole reason to convert, and on a page carrying many photographs it adds up to a real difference in how quickly the page loads. The gain varies with the picture: busy, detailed images benefit most, while very small or already heavily compressed images may barely change. If a particular file comes out larger than the JPEG it came from, the original was already compressed hard and is best left alone.

It is a second lossy pass

Your JPEG is decoded and re-compressed as WebP, so the image passes through lossy compression twice.

At the quality used here that is normally invisible on a photograph, but it is permanent. The practical rule is to convert once, from the best version you have, rather than round-tripping a file through several formats. If you still hold the original camera file or an uncompressed export, converting that directly will give a better result than converting a JPEG that has already been squeezed.

Where WebP is accepted

Every current major browser displays WebP. Plenty of desktop software, older devices and upload forms still do not.

That split decides whether this conversion is right for you. For images going onto a website it is an easy win. For a file you need to email, print, or put through a submission form, JPEG remains the safer choice, because a recipient who cannot open a WebP will simply be stuck. Keep the JPEG alongside the WebP if the image has both jobs to do.

What this will not do

It cannot recover quality the JPEG already lost, and it will not add transparency.

WebP supports an alpha channel, but a JPEG has none to bring with it, so the result is opaque. Existing artefacts are carried straight through. If your goal is simply a smaller file rather than a different format, Image Compressor lets you trade quality for size directly, which is often the more controllable way to hit a specific limit.

Features

Accepts .jpg and .jpeg files only, one file per conversion
Exports WebP at a fixed quality of 0.92; there is no quality slider
Keeps the original pixel dimensions
Shows a clear error if the browser returns a format other than WebP
Runs in your browser using the canvas API; the file is not uploaded for the conversion

FAQ

Will the WebP be smaller than my JPG?

Frequently, but not guaranteed. The JPG was already compressed, and re-encoding it at 0.92 adds a second lossy step, so the saving depends on the picture. Compare the two file sizes before replacing anything.

Does re-encoding a JPG to WebP lower the quality?

Slightly, yes. Both formats are lossy here, so the image is compressed twice. At 0.92 the difference is usually hard to see, but it is not zero. Keep the original JPG.

Why did I get an error about the browser not being able to encode WebP?

Canvas WebP encoding works in Chromium-based browsers and Firefox, but Safari may return a different format. The tool checks the output type and reports an error rather than handing you a mislabelled file. Try another browser.

Can I set the WebP quality or compress harder?

Not on this page. For a quality slider with WebP output, use the Image Compressor.

Image Compressor

Reduce an image's file size with a quality slider, output format choice and optional max dimensions.

WebP to JPG

Convert a single WebP image to JPG in your browser; transparent areas become white.

PNG to WebP

Convert a single PNG to WebP in your browser, keeping transparency where the browser supports it.