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Convert JPG to WEBP

Make your web images 25–35% lighter without visible quality loss. Converts in your browser — nothing uploaded.

Your image

Drag & drop an image, or click to browse

JPG, PNG, WEBP, HEIC or AVIF

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Add an image to get started.

Why use this tool

  • No file size limit

    Full-size photos straight from your phone or camera.

  • Nothing is uploaded

    Processed entirely in your browser. Your files never leave your device.

  • No signup needed

    Open the tool and go. No account, no email.

WEBP does the same job as JPG in less space. For the same visual quality it is typically a quarter to a third smaller, which on an image-heavy page is the difference between a fast site and a slow one. Every current browser supports it, and Google's own PageSpeed report asks for it by name.

This converter re-encodes your JPG as WEBP in your browser. No upload, no account, no watermark, and no limit on how many files you run through it.

How to convert JPG to WEBP

  1. Add your JPG

    Drag the .jpg or .jpeg file into the box, or click to browse. PNG and HEIC files work here too.

  2. Check that WEBP is selected

    WEBP is already chosen. JPG and PNG are there if you change your mind.

  3. Convert and download

    Press Convert to WEBP. The result appears with its new size next to the original, so you can see exactly what you saved.

Why convert to WEBP

WEBP was designed for the web. At the same perceived quality it is usually 25–35% smaller than a JPG, and it can also replace PNG losslessly while keeping transparency — so one format covers both jobs.

Smaller images load sooner, and the largest image on a page is very often the element Google measures for Largest Contentful Paint. Converting photographs to WEBP is one of the few optimisations that improves that score without changing anything about how the page looks.

Browser support is no longer a concern: Chrome, Edge, Firefox, Safari and every mobile browser in current use read WEBP. The gap is outside the browser, where some desktop software and upload forms still reject it — which makes WEBP a delivery format rather than an archive format.

What the conversion does to your file

The JPG is decoded and re-encoded as WEBP at a high quality setting. Dimensions do not change, and at normal viewing size the two are indistinguishable.

This is a second lossy encode, so in theory a little more detail is discarded. In practice, at the quality used here, the result is visually identical — but convert from the best original you have rather than from a copy that has already been compressed hard.

A JPG has no transparency to preserve, so nothing is lost there. Converting a transparent PNG to WEBP does keep its alpha channel.

EXIF metadata is dropped, which is normal for images headed to a web page and makes the file a little smaller again.

Serving WEBP on a website

Because a few visitors and tools still cannot read WEBP, the safe pattern is to offer both: a picture element with a WEBP source and a JPG fallback, or a CDN that negotiates the format per request. Most modern frameworks and image CDNs do this for you.

Convert, then check the numbers on the result card. If a particular image comes out barely smaller, it was probably already compressed hard as a JPG — there is nothing left to gain and the JPG is fine as it is.

JPG compared with WEBP

Same picture, different priorities.

JPGWEBP
Typical file sizeBaseline25–35% smaller
CompressionLossyLossy or lossless
TransparencyNoYes
Browser supportUniversalEvery current browser
Desktop and print softwareUniversalPatchy
Best used asA file you send or archiveA file you serve on a page

When to convert JPG to WEBP

  • Speeding up a website

    Swapping JPGs for WEBP cuts image weight by roughly a third with no visible change on screen.

  • Fixing a PageSpeed warning

    "Serve images in next-gen formats" is Lighthouse asking for exactly this conversion.

  • Cutting bandwidth costs

    On a high-traffic site, a third off every image is a third off the bandwidth bill.

  • App and email assets

    Anywhere you control the client and know it can read WEBP, the smaller file is free performance.

Frequently asked questions

Is WEBP better than JPG?
For the web, yes: smaller at the same quality, and it supports transparency. For files you send to other people or archive, JPG's universal support still wins — WEBP is rejected by a surprising number of upload forms and older applications.
How much smaller will my WEBP be?
Usually 25–35%, and sometimes more. A JPG that was already compressed hard has less to give. The result card shows the exact figure before you download.
Does converting JPG to WEBP lose quality?
It is a second lossy encode, done at a high quality setting, so the result is visually identical at normal viewing size. Convert from the best original you have rather than from an already-degraded copy.
Do all browsers support WEBP?
Every browser in current use does, including Safari since 2020. The gap is outside the browser — some desktop editors, print workflows and upload forms still refuse it.
Can I convert WEBP back to JPG?
Yes. Run it through the converter and pick JPG, or use the dedicated WEBP to PNG page if you need transparency kept.
Can I convert JPG to WEBP in bulk?
One file at a time. Each conversion takes a second or two and the page does not reload, so a batch of images for a page is quick. For a whole media library, a build step or an image CDN that serves WEBP automatically is the better tool.
Are my JPGs uploaded when converting to WEBP?
No. The JPG is decoded and re-encoded on a canvas inside your browser tab.
Should I use WEBP or AVIF?
AVIF compresses better again, but it is slower to encode and support in desktop tools is thinner. WEBP is the safe default today, and it is what this converter writes.
Does it work with PNG as well?
Yes, and transparency is kept. A transparent PNG converted to WEBP is usually much smaller than the PNG and still has its alpha channel.

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