JPG to PNG Converter
Drop a JPG file below and get a PNG back in seconds — converted on your own device, not uploaded anywhere.
Processed entirely in your browser using a Web Worker. Nothing is uploaded.
What is a JPG file?
JPEG (or JPG) is the format most cameras and phones save photos in. It compresses by discarding detail the eye is least likely to notice, which keeps file sizes small at the cost of being lossy — save the same file repeatedly and quality degrades a little each time. It has no transparency channel.
What is a PNG file?
PNG (Portable Network Graphics) is a lossless raster format built for graphics that need pixel-perfect edges and transparency — logos, screenshots, icons, diagrams. Every pixel survives the save; nothing is approximated the way JPEG does. The tradeoff is file size: a PNG of a photograph is usually much larger than the same photograph saved as JPEG or WebP.
How it works
- Drop your JPG file into the box above, or click to choose one.
- Your browser converts it to PNG instantly, using its own image engine — nothing is sent anywhere.
- Download the PNG file. That's it.
Other conversions
PNG to WEBP
smaller page weight without losing PNG's transparency
WEBP to PNG
opening a WebP in software that doesn't support it yet, or archiving it in a universally-readable format
PNG to JPG
shrinking a screenshot or graphic for email or a page where transparency isn't needed
JPG to WEBP
cutting page weight for photos without a visible quality hit
WEBP to JPG
compatibility with older software, email clients or platforms that don't accept WebP
Questions.
Is my image uploaded to a server?
No. The conversion runs entirely in your browser using the Canvas API — your JPG file never leaves your device.
Will converting to PNG reduce quality?
No — PNG is lossless, so the conversion itself doesn't discard anything further. Any quality loss already happened when the file was first saved as JPEG; converting to PNG just locks in whatever that JPEG had, without compressing it further.
Is there a file size limit?
No limit is enforced by the tool itself — the practical ceiling is your browser's available memory, which handles typical photos and graphics easily.
Is this really free?
Yes — every format conversion on ByteRivet is free, with no account, watermark or daily limit.
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