JFIF to PNG Converter
Convert JFIF files to lossless PNG — free, instant, runs in your browser. No upload, no signup.
.jfif extension (especially from Microsoft Edge). The image is standard JPEG data — just with a different filename. This converter outputs a lossless PNG you can use anywhere.Need JPG instead? JFIF to JPG →
Drop images here or click to upload
JPG, WEBP, GIF, BMP — any size
Why convert JFIF to PNG?
PNG is a lossless format that supports transparent backgrounds and is accepted everywhere. Use PNG when you need to re-edit the image without introducing compression artifacts, need transparency support, or are working with graphics, logos, or screenshots. If file size is more important than lossless quality, JFIF to JPG gives you a smaller file.
Frequently asked questions
What is JFIF and why does Windows create these files?
JFIF (JPEG File Interchange Format) is the technical standard for JPEG image files. Windows — specifically Microsoft Edge — saves downloaded images with the .jfif extension instead of the more common .jpg. The image data is 100% standard JPEG. The only difference is the file extension, which causes compatibility issues with many apps.
Does converting JFIF to PNG improve quality?
Converting JFIF to PNG doesn't recover quality lost by JPEG compression — any existing artifacts in the JFIF image remain in the PNG. What PNG does is prevent any further quality loss: once in PNG format, re-saving the file never introduces new compression artifacts. PNG files from photographs will be significantly larger than the original JFIF.
Can I just rename JFIF to PNG?
No — renaming changes the extension but not the actual file format. A renamed .jfif → .png file still contains JPEG data inside, which will confuse many apps. This converter properly re-encodes the image data as PNG. For JPG, renaming works because JFIF and JPG are the same format; for PNG, actual conversion is required.
Is my file uploaded to a server?
No. Conversion runs entirely in your browser using the Canvas API. Your JFIF file never leaves your device.
Can I convert multiple JFIF files to PNG at once?
Yes — drop multiple files at once for batch conversion. Each outputs a separate PNG.
What is a JFIF file?
JFIF stands for JPEG File Interchange Format — the official technical standard for how JPEG images are stored on disk. It contains the same compressed image data as any .jpg or .jpeg file; the only difference is the file extension that Windows or certain apps choose to assign. Opening a .jfif file in any image editor will show you a standard JPEG image.
Why would I convert JFIF to PNG?
PNG is a lossless format that is universally recognized by all apps, upload forms, and devices without extension confusion. Converting JFIF to PNG avoids the compatibility problems caused by the unusual .jfif extension — apps that reject .jfif uploads will accept .png. PNG is also useful if you plan to edit and re-save the image multiple times, since re-saving a PNG never introduces new compression artifacts.
Is JFIF to PNG lossless?
The PNG output file is lossless — once in PNG format, re-saving never degrades quality. However, the original JFIF/JPEG image already has lossy compression baked in from when it was first saved as JPEG, and that compression cannot be reversed. Converting JFIF to PNG stops any further quality loss but does not recover quality that was already lost by JPEG encoding.
How do I batch convert JFIF to PNG?
Drop multiple JFIF files onto the upload area at once — the tool converts all of them simultaneously in your browser. Each file outputs a separate PNG ready for individual download. There is no file count or size limit since conversion runs locally without any server upload.
Can I rename .jfif to .png?
No — JFIF and PNG are completely different file formats. Renaming photo.jfif to photo.png changes the extension but leaves JPEG-encoded data inside the file, which will confuse or crash apps that expect real PNG data. Actual conversion (re-encoding the image data as PNG) is required, which is exactly what this tool does. By contrast, renaming .jfif to .jpg does work because JFIF and JPG are the same format.
Which programs create JFIF files?
Microsoft Edge is the most common source — it saves right-clicked images from web pages as .jfif by default. Some older versions of Internet Explorer also used this extension. Certain digital cameras, embedded systems, and older image-processing apps that strictly follow the JFIF specification may also produce .jfif files. The file content is identical to standard JPEG regardless of which application created it.