How to use Image Converter
Convert JPEG, PNG, and WebP images in batches.
- Choose images, select a supported output format, then convert and download each image or a ZIP.
- Process the selected files, then inspect the preview, dimensions or warnings.
- Download a new copy and check it before replacing or sharing the original.
How processing works
The browser decodes JPEG, PNG or WebP into pixels and encodes a new file in your chosen supported format. This changes the container and compression rather than restoring image quality.
A quick example
Convert a transparent PNG to WebP to keep its transparent background.
Assumptions, edge cases & limits
- JPEG cannot store transparency; transparent pixels are placed on white.
- Animated images and original metadata are not preserved as an unchanged source file.
- JPEG does not support transparency; transparent areas become white.
Questions about Image Converter
Which format keeps a transparent background?
Choose PNG or WebP. JPEG does not support an alpha channel, so use it only when a solid background is acceptable. Check the preview after conversion.
Does changing JPG to PNG improve the photo?
No. A PNG can preserve the decoded pixels without another JPEG compression step, but it cannot recover detail already lost in the original JPEG. It may also be much larger.
Are my files or inputs uploaded?
Calculation and file processing run in your browser without a processing upload. Downloads go to your device. Choosing a next-step transfer creates a temporary local copy for that workflow. Region preferences are stored separately from tool inputs. See our privacy details.
Can I use this tool for free?
Yes. No signup, subscription or payment is required to use the tool or download its output. File tools have device and size limits; a smaller batch may work better on a phone.
A result or explanation needs correcting? Tell us the tool name and an example.