Keep transparency when converting PNG
WebP can retain transparent pixels, making it useful for logos and illustrations. A flat illustration or tiny PNG may already be efficient, so check the result instead of assuming savings. The WebP quality control changes encoding, including how gradients and edges look.
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.