Convert Image to WebP
Converting an image to WebP usually cuts the file size by a quarter with no visible change, and keeps transparency intact. The panel below takes JPG, PNG, AVIF or BMP and always writes WebP.
Drop images here, or browse your files
JPEG, PNG, WebP, AVIF and BMP. Up to 200 images per batch, 50 MB per file.
Files are read locally by your browser and are never uploaded to a server.
Queue
No images yet
Images you add appear here with a preview, their file size, progress and any errors.
Settings
→ WebP
Keeps the capture date, camera model and other details.
If a page loads slowly and the images are JPG or PNG, converting them to WebP is the usual first fix: often a quarter smaller at the same visual quality, with transparent areas intact. Every current browser reads it, so no fallback is needed.
This page takes the common formats and always writes WebP.
When WebP is the right target
- The image goes on a website or into an app. A smaller file loads faster and costs less bandwidth.
- Transparency and size both matter. That is WebP’s main advantage over JPG.
- The source is a PNG screenshot. Lossless screenshots often shrink dramatically as WebP.
If the receiving software is an older design tool or an upload form, JPG is safer.
Transparency survives, quality mostly does
WebP carries alpha, so transparent areas from a PNG come through untouched instead of being painted white.
Encoding defaults to quality 0.9, which is lossy. On photographs the difference is invisible; text screenshots may soften slightly. Raise the quality slider if that matters.
Choosing between the three
- Maximum compatibility: Convert to JPG
- Lossless, still editable: Convert to PNG
- Even smaller, slower to encode: Convert to AVIF
When WebP is the wrong choice
- An older desktop tool or a strict upload form. Some still accept only
.jpgand.png, and a WebP dropped there is simply refused. - An attachment for other people. WebP opens in browsers, but not always in mail previews or office suites.
- An image you will edit again and again. The output here is encoded lossily, so repeated saves accumulate damage. Keep a PNG master and convert once, at the end.
- A CMS that makes its own derivatives. When the platform re-encodes everything on upload, JPG is the safer input.
How to use it
- Drop in images. JPG, PNG, AVIF and BMP all work.
- Conversion starts on import. The output format is already pinned to WebP.
- Adjust quality. The slider re-runs the batch when changed.
- Download. Save files individually, or take the batch as a ZIP.
Frequently asked questions
How do I convert an image to WebP?+
Drop the file into the panel below. The output format is pinned to WebP, so conversion starts on import; adjust the quality slider if you need to, then download the result.
Can I convert PNG or JPG to WebP in a batch?+
Yes. Drop in a set of images and each is processed in turn; download them individually or as a ZIP.
How much smaller is WebP than JPG?+
Typically twenty to thirty percent at the same visual quality, and far smaller than PNG for transparent images. Each card shows the real numbers.
Is WebP well supported?+
Every current browser renders it. Older design tools, some office suites and a few upload forms do not, so use JPG for those.
Is transparency preserved?+
Yes. WebP carries an alpha channel, so transparent areas from a PNG survive instead of being filled with white.
Does quality drop?+
There is one lossy pass, encoded at quality 0.9 by default. The slider in the settings panel adjusts it.
Is my image uploaded anywhere?+
No. The conversion runs in your browser, the file never leaves your device, and no account or sign-up is needed.
Related
Tools
More like this
- Convert Images to JPG — Convert to JPG: turn PNG, WebP, AVIF or BMP into the most widely accepted image format. Batch conversion in your browser, no upload, ZIP export.
- Convert Images to PNG — Convert to PNG: turn JPG, WebP, AVIF or BMP into lossless PNG with the alpha channel intact. Batch conversion in your browser, no upload required.
- Convert PNG to JPG — PNG to JPG: turn PNG screenshots and assets into lighter, more widely accepted JPG files. Transparent areas become white, and nothing is uploaded.
Guides
- JPEG, PNG, WebP and AVIF explained — When each format is the right answer, what transparency costs you, and how EXIF orientation quietly affects every rotated photo.