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JPG to WebP Bulk Converter

Convert JPG images to WebP right in your browser — nothing is uploaded. Preparing a whole gallery for a website means converting and resizing many photos at once, not one at a time.

By Aditya Kr Sharma Files stay on your device

  • Free
  • Instant
  • No sign-up

Convert

Or import from
Supports: JPGJPEGJFIFPNG
+3 more WEBPGIFBMP

Only images wider than this are reduced; height follows so the shape never changes, and nothing is enlarged.

Lower quality means a smaller file and more visible compression. 92% is a good default; below about 70% the difference starts to show on photographs.

Nothing is uploaded. This tool runs entirely in your browser, so the file never leaves your device. There is no server to send it to, no copy kept anywhere, and it keeps working if you lose your connection after the page has loaded.

Accepts .jpg .jpeg .jfif .png .webp .gif .bmp You get: .webp files (resized if you choose) Free, no sign-up

How to convert

  1. Add your files Drag them in, choose files, or use the camera.
  2. Check the settings The defaults suit most files.
  3. Download Save one file, or all of them as a ZIP.

How to convert JPG to WebP

  1. Drop your JPG files on the box above, or click it to choose them (up to 30 at once).
  2. Check the settings — the quality slider trades file size against detail.
  3. Press Convert. Each file is processed on your device and shows its old and new size.
  4. Download the files one by one or take them all as a ZIP.

What changes when you convert JPG to WebP

  • The image is decoded and compressed again as WebP at the quality you choose. A small loss of detail is part of lossy compression; at the default 92% it is very hard to see.
  • JPG images have no transparency, so there is nothing to lose there.
  • Camera details and GPS location (EXIF) are not copied into the new file. Photo orientation is applied to the pixels first, so the result is the right way up.
  • Wide images are scaled down to the width you choose (never up), keeping their proportions.

About JPG and WebP files

JPEG is the standard format for photographs. It compresses by discarding fine detail the eye is unlikely to miss, so files are small but every re-save loses a little more.

WebP is Google’s web image format. At the same visual quality it is usually smaller than JPEG and PNG, and it supports transparency, but older desktop software may not open it. It is a good choice for images for websites, where smaller files load faster.

Limits

Up to 30 files of 25 MB each per batch and images up to 50 megapixels — beyond that browsers run out of memory, so the tool says so instead of producing a broken file. Writing WebP needs Chrome, Edge or Firefox; older Safari versions cannot, and the tool tells you rather than saving a PNG under a .webp name. Files that are not images, or are damaged, are rejected with the reason.

Frequently asked questions

Are my images uploaded anywhere?

No. The conversion runs in your browser on your own device, and this page has no upload endpoint. Once the page has loaded it keeps working offline.

Is JPG to WebP lossless?

No — WebP output is re-compressed, so a little detail is lost. Choose a higher quality to keep more of it.

Does resizing change the shape of my photos?

No. Only the width is limited; the height is scaled by the same factor, and images narrower than the limit are left at their own size.

What happens to transparency?

JPG has no transparency, so the result is fully opaque.

How many files can I convert at once?

Up to 30 files of 25 MB each per batch, and images up to 50 megapixels. Convert them together and download each one, or take them all as a ZIP.

JPG to PNGJPG to WebPJPG to SVGJPG to BMPJPG to TIFFJPG to ICO

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