Drop JPG files below and download them as PNG, all on your device — nothing is uploaded. PNG is a lossless format, so this freezes the image exactly as it is now without adding any further compression. Useful when a tool, print shop or platform specifically wants PNG.
Converted PNG files will appear here with a size comparison.
How it works
The JPG is decoded and re-encoded as PNG using your browser’s Canvas API. PNG stores every pixel exactly, so no additional quality is lost in the conversion — but it also cannot recover detail the original JPG already discarded. Expect the PNG to be noticeably larger than the JPG, often several times, because lossless compression of photographic content is far less efficient than JPG’s.
Because the output is lossless, this is the right step before an editing workflow where you save repeatedly: editing and re-saving PNG never degrades, while re-saving JPG loses a little each time. Each file shows its before and after size so the size increase is never a surprise.
Practical examples
A tool that only accepts PNG
Some design tools, wikis and upload forms reject JPG and want PNG. Drop the JPG, download the PNG, and it goes straight through — no reason to open an image editor.
Freezing an image before heavy editing
You’ll crop, annotate and re-save a screenshot several times. Convert it to PNG first so repeated saves stay pixel-perfect instead of accumulating JPG compression artifacts.
A logo received as JPG
A logo arrived as JPG with a white box behind it. Converting to PNG won’t restore transparency (JPG never had it), but it gives you a lossless base to edit the background out in another tool.
Frequently asked questions
Does converting JPG to PNG improve the quality?
No. The JPG already discarded detail when it was first saved, and that detail cannot come back. PNG preserves the current pixels exactly without adding more loss, but it does not sharpen or restore anything — it just stops further degradation.
Why is the PNG so much larger than the JPG?
PNG is lossless: it stores every pixel precisely, which is inefficient for photographs full of subtle gradients. JPG throws away hard-to-see detail to get small files. For a typical photo the PNG can be three to ten times bigger — normal, not a bug.
Will I get transparency by converting to PNG?
No. PNG supports transparency, but a JPG has none to begin with, so the converted PNG is fully opaque. To actually add transparency you must erase a background in an image editor; the format change alone can’t do it.
Are my images uploaded to a server?
No. The whole conversion runs in your browser with the Canvas API. You can go offline after the page loads and keep converting — no image data ever leaves your device.
Can I convert several JPGs at once?
Yes. Select or drop as many as you like; each converts independently and gets its own download button, with a size comparison per file.
When should I NOT convert JPG to PNG?
If your goal is a smaller file, don’t — PNG will be larger. For sharing photos or shrinking size, keep JPG or convert to WebP instead. PNG makes sense only when a tool requires it or when you need a lossless base for editing.
Is there a file size or count limit?
No fixed limit. Because processing is local, the practical ceiling is your device’s memory — a desktop handles very large images a phone might not.
Does the conversion keep EXIF metadata?
No. Re-encoding through the canvas drops embedded metadata such as camera model, GPS location and timestamps. That is often a welcome privacy side effect when sharing images.
Is JPG the same as JPEG?
Yes — the format is JPEG; the “.jpg” extension is a leftover from systems that allowed only three letters. This tool accepts both .jpg and .jpeg and treats them identically.
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