JPG to WEBP, explained
Try WEBP copies of JPEG photos for a website or application that accepts WEBP. Choose a quality setting and compare the real output against your original. The converter keeps dimensions at Original size, offers optional resize in Advanced Settings, and encodes a new still image locally; it cannot guarantee that every photo becomes smaller or visually identical.
Add the original JPG photos rather than previously converted copies.
Select WEBP quality and convert a representative photo first.
Compare detail and file size, then apply the chosen settings to the rest of the batch.
Prepare an image for a web workflow
WEBP can be a useful delivery format when the browser, content management system and downstream tools in your workflow accept it. Test one converted photo in that destination before replacing a whole library. A conversion should solve an actual publishing need; there is no benefit in changing a working file solely for its extension.
Understand this encoder’s quality control
This tool requests browser-native WEBP encoding with a quality value from 1 to 100. The default is 90. It is a lossy-quality workflow, not a dedicated lossless WEBP mode, and different browser encoders can produce different sizes. Quality 100 does not promise a bit-for-bit copy of the decoded source.
Compare detail at the intended display size
Start by examining the converted image where it will actually be displayed. Then inspect fine texture, small text and smooth gradients more closely. A lower quality may be acceptable for a thumbnail but unsuitable for a detailed product photo. No single setting is the best choice for every image.
Measure the result, not an advertised percentage
Savings depend on the original JPEG, its existing compression and the chosen WEBP quality. Some conversions may be larger. FormatPlease reports the actual output size so you can decide whether to keep the new file. Pixel dimensions change only when you choose resize in Advanced Settings. There is no target-byte-size setting on this converter.
Keep a source copy for future edits
A JPG may already contain compression loss. Re-encoding it into another lossy format cannot restore that information, and repeating the cycle can compound artifacts. Keep your original or editing master. The WEBP output also omits original EXIF information and does not preserve an archival color-management workflow.
Further reading: Google’s WEBP format overview.