How to use the Image Converter
- Add one or more images
- Choose the output format and quality
- Click Convert and download your files
About this tool
Convert pictures between PNG, JPG and WebP in one click. The conversion happens on your device, so even private photos stay private and there is no waiting for uploads. You can process several images at once and choose the output quality.
PNG, JPG and WebP compared
- PNG is lossless and supports transparency. It is ideal for logos, screenshots and graphics with sharp edges, but photos saved as PNG are large.
- JPG is lossy and has no transparency. It makes small files for photographs and opens almost everywhere.
- WebP can be lossy or lossless, supports transparency and usually makes smaller files than JPG or PNG. All current major browsers display it, but some older apps and upload forms still reject it.
Which format should you choose?
Choose JPG for photos you want to share or email. Choose PNG when you need transparency or perfect edges, for example a logo or an interface screenshot. Choose WebP for website images where smaller files help pages load faster. If a site or program refuses a file, converting it to JPG or PNG almost always fixes it.
What changes when you convert
- Transparency: JPG cannot store it, so transparent areas become white.
- Quality: the quality setting applies to JPG and WebP. PNG is lossless, so it ignores the setting.
- Size in pixels: the width and height stay the same. To change them, use the Image Resizer.
- Metadata: camera details and location data (EXIF) are not copied into the converted file.
Privacy and limits
Files are processed inside your browser and are not uploaded to FormatVolt. Each file can be up to 50 MB. Very large images or PDFs can fail on devices with little memory, so try a smaller file or a desktop browser if that happens.
Frequently asked questions
Is it really free?
Yes. There are no limits, watermarks or sign-ups.
Are my files uploaded anywhere?
No. The conversion runs inside your browser, so your files never leave your device.
Which formats are supported?
You can open any image your browser supports and export PNG, JPG or WebP.
Can I convert many images at once?
Yes. Add several files and download each converted image.
Does converting to JPG remove transparency?
Yes. JPG cannot store transparency, so transparent areas are filled with white.
Why can't I create a WebP file in my browser?
Creating WebP files depends on your browser. If yours cannot, the tool shows a message and you can choose PNG or JPG instead.
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Last updated: November 6, 2026