⚡ JPG to WebP Converter
Compare a photo’s WebP size and appearance before publishing it.
Need to limit height as well as width? Open the image resizer. Choose the image again there; files are not transferred between pages.
About converting JPG to WebP
Converting a JPEG photo to WebP can help a website’s image budget, but the file may also grow. Compare the actual output bytes and preview rather than assuming a fixed saving.
JPEG is lossy; WebP supports both lossy and lossless encoding, but this browser workflow does not guarantee a lossless result. Your JPG has already discarded detail, and WebP compresses the result a second time, so the artefacts compound. Keep the quality slider at 85 or above unless you have inspected the output closely, and always convert from the highest-quality original you have rather than from a JPG that has already been through several rounds of re-saving.
JPEG input has no transparency, so this conversion does not need a background color. WebP itself supports transparency; use PNG-to-WebP when your source has an alpha channel.
Most of the saving on a camera photo comes from the Max width field, not the format: a 4000-pixel photo shown 800 pixels wide on a page wastes about 96% of its pixels. Resize first, then fine-tune quality.
The image conversion runs in your browser without uploading your file. Keep the original: this creates a still image and does not promise to preserve animation, metadata, or color profiles.
Using JPG to WebP Converter
Reduce the size of JPEG photos for a website, online store or portfolio so pages load faster, and check the saving before you replace the originals.
How to use it
- Drop a JPEG onto the upload area, or click to choose it. Start from the best-quality original you have.
- Set Max width to the largest size the photo is shown on your site; resizing usually saves more than any format change.
- Adjust Quality between about 75 and 90 and zoom into the preview to check faces, text and fine patterns.
- Compare the percentage change in the stats line, then click Download to save the .webp file.
Worked example
- Input and settings
- camera photo 4000 × 3000, Quality 80, Max width 1600
- Expected result
- A 1600 × 1200 WebP; the stats line reports the exact saving for your photo.
Limits and common mistakes
- WebP recompresses an already-compressed JPEG, so artifacts add up; avoid converting a JPEG that has been saved many times.
- A small, heavily compressed JPEG may come out larger as WebP; the stats line will show a positive percentage if so.
- Location, camera and date metadata are dropped, which is good for privacy but loses the capture date.
- For several photos at once, the batch converter takes up to 10 images (50 MiB in total) and returns them in one ZIP.
Found a mismatch? Report a problem with a non-sensitive example. Read our privacy information before sharing inputs or links.
🔗 Related Tools
PNG to WebP Converter
Convert PNG images to WebP in your browser. Adjust quality and dimensions with transparency preserved. Nothing is uploaded.
WebP to JPG Converter
Convert WebP images to JPG in your browser with a quality slider and a background colour for transparent areas. Nothing is uploaded.
Batch Image Converter
Convert up to 10 images locally, with progress, cancellation and individual or ZIP downloads.
Image Compressor
Try a target size in KB with JPEG or WebP quality search, measured bytes, and optional pixel limits.