Convert WebP to JPG — Free, Fast & Private
Most WebP downloads end up as JPG because an older app, form or print service will not open WebP. The conversion has two catches: transparency and a second lossy pass. Everything runs in your browser — nothing is uploaded.
Transparent WebP becomes white-backed
JPEG cannot hold transparency, so MiniPx fills transparent pixels with white before encoding. If the WebP is a logo or cut-out you need to keep transparent, convert to PNG instead.
Lossy to lossy
A lossy WebP decoded and saved as JPG is a second round of compression, so artefacts can build up. If the JPG has to stay under a size limit, 200 KB and 100 KB have dedicated pages, and the JPEG compressor tunes the result afterwards.
Animated WebP gives one frame
If the WebP is animated, only the first frame is written to the JPG, and the tool tells you. JPG cannot hold an animation.
Metadata
The JPG carries no EXIF from the source. The rotation, if any, is applied to the pixels.
Why a WebP will not open
WebP became standard in browsers years ago, but many desktop programs, print services, form validators and older phones still reject it. Saving an image from a web page often gives you a .webp because that is what the site served. A JPG opens nearly everywhere, which is why this conversion is so common.
Check the JPG against the WebP before you save
Each row shows the original size, the JPG size and the change. WebP is usually smaller than JPG at the same quality, so expect the JPG to be larger. The Smart preset keeps the file reasonable; Gentle favours quality.
Other WebP conversions
The WebP converter gathers every WebP direction on one page.
WebP to JPG on real files: measured sizes
| File | Before | After | Change | Background |
|---|---|---|---|---|
| Phone photo as WebP (2016 × 1512) | WebP · 2016 × 1512 px · 784.7 KB | JPG · 2016 × 1512 px · 502.6 KB | 36% smaller | — |
| Screenshot as WebP | WebP · 1280 × 800 px · 37.6 KB | JPG · 1280 × 800 px · 37.6 KB | 0% larger | — |
| App icon as lossless WebP (transparent) | WebP · 2048 × 2048 px · 77.5 KB | JPG · 2048 × 2048 px · 37.1 KB | 2.1× smaller | Became white |
Measured 2026-10-07 in Chromium 145.0.7632.6 by running this page's converter with its default setting (JPG) on each file. The photos and scans are CC0 or public-domain files from Wikimedia Commons; the screenshot is MiniPx's own; the WebP photo is the phone photo halved and saved as WebP quality 80; the screenshot WebP is MiniPx's own screenshot saved as WebP quality 85; the transparent WebP is the measuring script's app icon saved as lossless WebP. Sizes are shown as the tool shows them (1 KB = 1,024 bytes).