Is WebP better than JPEG?

For the web, generally yes — noticeably smaller at the same quality. For files that leave the web, JPEG's universal compatibility is worth more than the bytes.

Does converting reduce quality further?

Slightly, because it is a lossy-to-lossy conversion. Converting from the original rather than from an already-compressed JPEG avoids stacking the two losses.

Do all browsers support WebP?

Every current one, and has for several years. Very old browsers do not, which is what the picture element's fallback is for.

Can WebP have a transparent background?

Yes — unlike JPEG, it supports an alpha channel in both its lossy and lossless modes. A JPEG has none to carry over, but the capability is there.

JPG to WebP Converter

Converts JPEG to WebP, typically cutting the file by a quarter to a third at the same visual quality.

Runs in your browser — nothing is uploaded

Your image

Drop an image here

or choose a file — it never leaves your browser

Re-encoding is generationally lossy for JPEG and WebP — each pass loses a little detail. Always work from the original rather than re-processing a result.

Result

Your processed image appears here.

Need this as an API?

Why use it

Built to be genuinely useful

Meaningfully smaller

25–35% smaller than JPEG at comparable quality, which on an image-heavy page is the difference between fast and slow.

Supported everywhere current

Every major browser has supported WebP for years. It is a safe default for the web now rather than a bet.

Nothing is uploaded

The image is decoded and re-encoded by your browser. It never reaches a server, which matters for anything with a face, a document or a location in it.

Free, no watermark

No account, no queue, and nothing stamped across the result.

How it works

Three steps

1
Open the JPEG.
2
Choose the quality.
3
Download the WebP.

Where the saving comes from

WebP's lossy mode uses prediction techniques borrowed from video compression: it predicts each block from its neighbours and stores only the difference. JPEG, designed in 1992, has no equivalent. The result is the same visual quality in fewer bytes.

The saving is largest on photographs with smooth gradients — skies, skin, shallow depth of field — where JPEG spends bytes on the very detail it then blurs. On busy, high-contrast images the gap narrows, though WebP still comes out ahead.

Where JPEG is still the right answer

Anything leaving the web. Email clients, older desktop software, some print workflows and a number of upload portals either do not accept WebP or handle it badly. A file that will be emailed or submitted to a government portal should be JPEG.

The usual arrangement for a website is to serve WebP with a JPEG fallback, which HTML's picture element does natively. That gets the saving for nearly every visitor without stranding the few whose software cannot cope.

FAQ

Questions people ask

API access

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Related tools

More image tools

Available tools are linked; the rest are in development.

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