When JPG to WebP helps
A photographic JPG often converts to a smaller WebP for web use, but an already compressed small JPG may not. Keep dimensions constant, compare the actual bytes and inspect fine detail before publishing.
Convert JPEG to WebP and compare the result
- Select your JPG or JPEG photos and keep WebP as the output format.
- Choose a quality setting and convert. The converter keeps the source dimensions.
- Compare the original and output file sizes. Open the downloaded image and inspect fine details before replacing the original on your website.
What quality setting should I use?
There is no setting that guarantees a particular saving for every photo. Start with the default, then compare a lower or higher setting on the same source. Check faces, text and sharp edges at the size your website will display. Higher quality may increase the file size; a smaller result is useful only if its visible quality suits the task.
Does this tool resize the image?
No. This converter changes the format while keeping the pixel dimensions. To reduce a large camera photo to the width your layout needs, use the image resizer and compressor. If an application rejects WebP, use WebP to JPG; another lossy conversion cannot restore earlier lost detail.
How conversion works
Choose images, select an output format and convert. The browser decodes and re-encodes each image locally. Download the results individually. Originals remain untouched.
Check the result before publishing
Compare the original and converted sizes shown beside each file. A smaller image can help a webpage load faster, but conversion can also produce a larger file. Review visible quality and keep the original when it serves your page better.
Quality, transparency and metadata
The quality slider controls JPG and WebP compression; PNG uses lossless browser encoding, so that slider does not apply. PNG and WebP can keep transparent pixels; JPG cannot, so the selected background color is placed behind them. Re-encoding may remove metadata such as EXIF and color profile information. Check the output before replacing a published image.
Batch workflow
Select up to 30 images per job. The browser handles them one after another to limit memory use. Each result shows its dimensions, original size and converted size. Files above 30 MB or 32 megapixels are skipped with an error.
Browser support and limits
Conversion depends on the image formats your browser can decode and encode. If the browser cannot create the requested format, the tool reports that file as an error. Animated images, vector formats and RAW files are outside this version.
Common questions
Are my images uploaded?
No. Conversion takes place in your browser. Optional analytics measures tool use without image files or filenames.
Will every image become smaller?
No. Source compression and the selected quality affect the output. The result list reports increases as well as reductions.
Can I download an entire batch?
You can convert a batch and download each result separately. A ZIP download is planned for a later version.