Image Format Converter
Different websites and apps demand different image formats. An upload form may accept only JPG, a design tool may want PNG for its transparent background, and a website may load fastest with WebP. This free Image Format Converter changes a picture between PNG, JPEG, and WebP right in your browser, so you never have to install software or hand your files to an unknown server.
Each format has a personality. JPEG is the universal photo format: small files, supported everywhere, but it cannot store transparency, so see-through areas become white. PNG keeps every pixel exactly and supports transparency, which suits logos and screenshots, but photo files are large. WebP is the modern middle ground, usually smaller than both at similar quality, and it supports transparency too, though a few older apps still cannot open it. The tool redraws your image on a canvas and saves it in the format you pick, with a quality slider for JPEG and WebP.
How to use
- Click the file box and choose the image you want to convert.
- Look at the original format and size shown under the picker.
- Choose PNG, JPEG, or WebP from the Convert to menu.
- For JPEG or WebP, adjust the quality slider if you want a smaller file.
- Check the converted size and preview, then click Download Converted Image.
Frequently asked questions
What happens to transparency when I convert to JPEG?
JPEG has no transparency, so transparent areas are filled with white. If your logo or graphic needs to stay transparent, convert to PNG or WebP instead.
Which format gives the smallest file?
For photos, WebP usually wins, with JPEG close behind at slightly lower quality settings. PNG files of photos are much larger, because PNG keeps every pixel perfectly. For graphics with few colours, PNG can be surprisingly small.
Will converting reduce quality?
Converting to PNG is lossless. Converting to JPEG or WebP applies compression; at 92 percent quality the difference is hard to see in photos. Converting a JPEG to PNG does not restore quality the JPEG already lost; it only stops further loss.
Are my images uploaded anywhere?
No. The conversion is done by your browser on your device. Your image never leaves your phone or computer.