JPG to WebP Online Converter

Drag & drop images here, or click to browse

Batch conversion on your device — images are never uploaded.

Description

100% in-browser Canvas conversion
Transparent areas are filled with white

Related Tools

webp-to-jpg

JPG to WebP Converter – Free Online, Smaller Images, No Upload

Convert JPG and JPEG photos to WebP right in the browser to make them smaller for websites and apps. Drop one photo or a batch; the re-encode happens on your device, with no upload and no signup.

WebP is a modern raster format that typically weighs about 25 to 35 percent less than a JPG at matching visual quality, while supporting transparency and animation. For the trade-offs across the three main web formats, see WebP vs JPG vs PNG.

Key features

Shrink JPG/JPEG photos to WebP for faster pages and less bandwidth
Fixed high-quality WebP encode, no fiddly quality slider to mis-set
Batch conversion; multiple JPGs download individually or as one ZIP
Runs in the browser tab — the photos never leave this device
Free, no account, no watermark on the output files

How to use

Click the drop zone or drag one or many JPG files onto it.
Each photo is re-encoded locally to WebP and shows the new size.
Download WebPs one by one, or take the whole batch as a ZIP.

What WebP is, and why websites use it

WebP was announced by Google in 2010. Its lossy mode is built on the VP8 video codec keyframe compression, while its lossless mode (VP8L) uses different predictive transforms. Unlike JPEG, WebP also supports an alpha channel and animated sequences inside a single file.

Google published comparisons of equivalent-quality images in which WebP lossy files ran roughly 25 to 35 percent smaller than JPEG. On a content-heavy page that difference directly cuts load time and data use, which is why most image CDNs and CMS platforms now offer WebP output automatically. The browser side is covered in compress images for a website.

JPG to WebP versus staying with JPG

Size: the re-encoded WebP is usually noticeably smaller, often a quarter to a third lighter, at the high fixed quality this page uses.
Compatibility: WebP opens in Chrome, Edge, Firefox and Opera, and in Safari from version 14 (2020, macOS Big Sur and iOS 14). On older iPhones, older Macs or some embedded and email contexts, fall back to JPG.
Transparency: the WebP target keeps the source pixels as-is and does not flatten onto a white background, but a JPG has no alpha channel anyway, so the result is simply opaque. WebP can hold transparency; your JPG source just never contained any.
Animation: a static JPG cannot become an animated WebP; output is a single still image.

How this page does the conversion

The page fixes the output to WebP, so there is nothing to misconfigure. Each JPG is drawn to an off-screen canvas and exported as WebP at a fixed high quality, with the original pixel dimensions kept and no resizing.

No quality slider appears on purpose: the fixed high-quality setting protects you from accidentally choosing a low-quality number.
Because encoding runs locally, the photos are not sent anywhere; the needed engine is already part of the page.
Batches of more than one file get a single “Download all as ZIP” button.
If a particular old visitor still cannot open WebP, offer a JPG fallback with the reverse WebP to JPG route.

When converting helps — and when it will not

Convert JPG to WebP when…

you are publishing a website, shop or blog and want lighter images
you control the browser support of your audience on modern evergreen browsers
you are trimming page weight under a performance budget

Keep JPG when…

the image goes into email, where WebP is rarely rendered
you must support pre-2020 Safari or legacy apps
the JPG is already tiny and the savings are negligible

Step by step: shrink a batch of photos for the web

Gather the JPG photos on this computer.
Drop them onto the page or click to browse; several at once are accepted.
Wait for local re-encoding; each result shows its WebP size.
Save each WebP, or grab the whole batch with the ZIP button.
On your site, serve the WebP with a JPG fallback for older browsers.

Frequently Asked Questions

How much smaller is WebP than JPG?

At matching visual quality, Google published benchmarks showing about 25 to 35 percent smaller. Your real saving depends on the photo; this page encodes at a fixed high level rather than a tiny aggressive one.

Will converting reduce my photo’s quality?

A re-encode is lossy by nature, but the fixed high-quality setting keeps the difference normally invisible at the unchanged resolution. It cannot recover detail the original JPG already threw away.

Does this page let me choose the quality?

No. The dedicated page uses one fixed high-quality WebP setting; there is no slider, so you cannot accidentally pick a harsh compression level.

Which browsers can open WebP?

Chrome, Edge, Firefox and Opera support it, and Safari from version 14 (2020). Before Safari 14, or in most email clients, provide a JPG fallback.

Can I keep transparency when converting JPG?

No. A JPG has no alpha channel, so there is nothing to carry over. WebP supports transparency, but your source JPG was opaque.

Are my photos uploaded?

No. Re-encoding happens on your device in the browser tab; selected files never leave the computer.

Should I convert every JPG on my site?

For modern audiences, yes for page-weight gains, but keep a JPG fallback for older Safari and email. Compare the formats at WebP vs JPG vs PNG.