Why convert JPG to WebP
- Shrinking a site's or shop's product photos before upload.
- Preparing app assets, newsletters or docs where WebP is accepted.
- Archiving a large JPG library on a phone with limited storage.
How to convert JPG to WebP in ConvertX
- 1
Open Image Converter
On the Home screen tap Image Converter.
- 2
Select your JPG files
Tap "Select image files" and pick the JPG images (.jpg, .jpeg). On desktop you can also drag them in from Explorer or Finder.
- 3
Choose WebP as the target
In the output format list choose WebP.
- 4
Optional settings
Add a rename pattern (use {name} for the original file name), turn on "Keep photo details" if you want camera and location data copied into WebP, and pick an output folder (Android default: Pictures/ConvertX).
- 5
Start the batch
Tap "Convert N images". The Queue opens and processes them in order; you can stop one file or the whole batch.
- 6
Find the results
When the batch finishes, the summary shows the files converted and the space saved. Tap View Library to browse them, or find them in the output folder.
Step-by-step with screenshots: WebP vs AVIF: which should you convert to?.
What to know before you convert
- JPG to WebP is lossy to lossy. The Light preset keeps the loss invisible; Maximum is for thumbnails.
- Choose the "Exact quality" compressor mode instead if you want lossless WebP, but expect larger files than the JPG.
- EXIF is stripped by default; "Keep photo details" copies it into the WebP, which browsers ignore but photo tools read.
JPG vs WebP: what changes
| JPG | WebP | |
|---|---|---|
| Compression | Lossy | Lossless: optional |
| Transparency | No | Yes |
| Animation | No | Yes |
| Keeps EXIF in ConvertX | Yes | Yes |
| ConvertX reads it | Yes | Yes |
| ConvertX writes it | Yes | Yes |
| Extensions | .jpg, .jpeg | .webp |
JPG: The universal photo format. Small, lossy, opens everywhere, no transparency. WebP: Google's web format: about a third smaller than JPG, with optional transparency and lossless mode.
Deciding whether to convert at all? Read WebP vs JPG: which is better for photos?.
Nothing is uploaded
ConvertX converts on the device. There is no server, no account and no file size or count limit beyond your storage. Location and camera details are removed from every output unless you turn on "Keep photo details" (WebP can carry them).
Frequently asked questions
How much smaller will my files be?
Typically 25–35 % at Balanced for photos that were saved at normal JPG quality. Already heavily compressed JPGs save less.
Can I convert 500 JPGs at once?
Yes. The queue has been tested with 500-image batches; on Android it keeps running under a locked screen.
Does WebP keep the photo's orientation?
Yes. ConvertX applies the EXIF rotation before saving, so sideways phone photos come out upright.
Is there a size or count limit?
No upload, so no limit beyond your storage.
Related
- About JPGThe universal photo format. Small, lossy, opens everywhere, no transparency.
- About WebPGoogle's web format: about a third smaller than JPG, with optional transparency and lossless mode.
- PNG to WebPBulk convert PNG to WebP offline
- WebP to JPGConvert WebP to JPG offline, in bulk
- JPG to AVIFConvert JPG to AVIF offline, in bulk
- Compress JPGCompress JPG files offline, in bulk
Ready? Download ConvertX: free, with no ads, on Android and desktop.