How to use the JFIF to PNG converter
- Drop your JFIF files onto the box above, or click to choose them.
- Conversion to PNG starts automatically, right on your device.
- Download each file, or all of them as a ZIP.
What are JFIF and PNG files?
JFIF · JPEG File Interchange Format
JFIF files are ordinary JPEG images with a different extension, often produced when saving pictures from a browser on Windows. Many sites reject the .jfif extension even though the content is a JPEG.
PNG · Portable Network Graphics
PNG is a lossless image format with full transparency support. It's great for screenshots, logos and graphics, but photos saved as PNG are usually much larger than JPG.
Common questions about the JFIF to PNG converter
Are my files uploaded to a server?
No. uqln runs the conversion inside your browser using JavaScript and WebAssembly. Your files never leave your device, which also means there's no upload wait and no size limit beyond your device's memory.
Is it really free?
Yes. There's no account, no watermark and no daily limit. Because the work happens on your device, it costs us almost nothing to run.
Can I convert many JFIF files at once?
Yes. Drop as many files as you like. They're converted one after another, and you can download them individually or all together as a ZIP.