Convert JPG to WebP

Convert JPG images to WebP free, in your browser.

Change the format. Drop an image, a PDF or a Word document.

or drop them here images, PDFs or Word documents or paste with Ctrl+V
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    Your files are processed by your own browser and never sent to a server.

    This is a web performance job almost every time. A page is carrying a folder of photographs exported as JPG, the images are most of what a visitor downloads, and WebP holds the same pictures at roughly a third less for no visible difference.

    The thing to understand is that you are re-compressing something already compressed. Your JPG has been through a lossy encoder once; WebP puts it through a second one. At the default quality this is invisible and the saving is real, which is why the trade is worth making. Do it repeatedly, though, and each pass compounds on the artefacts of the last, so convert from the best original you have rather than from the copy that has already been round-tripped twice.

    Keep the JPGs. WebP is the right format to serve and the wrong format to archive: JPG will still open in everything in twenty years, and a decade-old desktop editor will not take a WebP today. Convert for the web, keep the originals somewhere, and you never have to make this decision again.

    How to convert JPG to WebP

    1. Drop your JPG files onto the box above, or paste them with Ctrl+V.
    2. Save each file from its tile, or take them all at once.

    JPG and WebP side by side

    JPGWebP
    Where it came from1992, from the Joint Photographic Experts Group2010, from Google, built on the VP8 video codec
    Throws detail away Yes Yes
    Transparency No Yes
    Where it opensEverywhere, on everything, including hardware old enough to voteEvery current browser. Some older desktop software and printers still refuse it.
    Best atPhotographs, and anything going somewhere you cannot predictImages on a web page, where it is roughly a third smaller than JPG at the same quality

    More on choosing between JPG, PNG, WebP and AVIF.

    Questions about JPG to WebP

    How much smaller will it be?

    At matched visual quality, twenty-five to thirty-five per cent is the usual range for a photograph, and the saving is larger on images with smooth gradients such as skies and studio backgrounds. It is smaller on pictures that were already compressed hard, because there is less left to remove. If your JPGs came out of a phone at full quality, expect the top of that range; if they have already been squeezed for an upload limit, expect the bottom.

    Does converting twice make it worse?

    A little, and it is unavoidable here. The JPG is decoded to pixels, artefacts and all, and WebP then compresses those pixels as if they were the original photograph. At high quality the second pass adds nothing you could see, but the effect accumulates: a JPG converted to WebP, back to JPG and to WebP again will visibly soften. Convert once, from the best copy you have, and keep it.

    Will every browser show it?

    Yes. Chrome, Edge, Firefox and Safari have all read WebP for years, on desktop and on phones, and the browsers that cannot are rarer than the ones that cannot run modern JavaScript. Outside the browser it is patchier: some desktop editors, older versions of Office and a number of printers still refuse one. That is an argument about what you archive, not about what you put on a page.

    Should I use WebP or AVIF?

    WebP if you want a change you can make today and forget about; <a href="/jpg-to-avif">AVIF</a> if the images are the point of the page and you are willing to think about it. AVIF is typically another twenty to thirty per cent smaller again, but it takes noticeably longer to encode and its support outside browsers is thinner still. For most sites WebP is the sensible default and AVIF is the optimisation after that.

    Other conversions

    JPG also converts to PNG, AVIF and PDF.

    WebP also comes from PNG.