QuickFileKit
Local processing
Your files and converted content remain inside your browser.
JPG to PNG
Turn JPG images into PNG files on your device. Convert several files, inspect real output sizes, and download the results.
JPG → PNGUp to 40 MB per file · processing stays on this device
Drop images here
Up to 40 MB per file · processing stays on this device
Add a compatible image to begin.
Your files stay on your device.Private by design — this tool processes files locally in your browser.
Found a problem or have an idea?
Send a short report and receive a tracking code. Do not include passwords, private files, or personal information.
01
How to use it
- Choose or drop one or more matching images.
- Adjust quality when the output format supports it.
- Review actual output sizes and download one or all files.
02
Why use this tool?
Real output
Displayed sizes are measured from the files your browser actually created.
Straightforward
No account, software installation, or external API is required.
04
Frequently asked questions
Does JPG to PNG upload my files?
No. Reading, conversion, and file generation all happen locally in your browser.
Is there a file-size limit?
Each source image is limited to 40 MB to reduce the risk of exhausting browser memory.
Will image quality change?
PNG uses lossless compression, though decoding and re-encoding may remove metadata.