Convert JPEG to PNG
Free online converter for JPEG files. Lossless raster format with alpha transparency. Nothing to install, no watermark, and every file is deleted automatically.
Drag and drop your files
or
Upload a JPEG file to convert it to PNG. Up to 3 files at once, 100 MB each.
Free · up to 3 files · 100 MB each · files deleted automatically after 1 hour.
About JPG and PNG
JPEG .jpg
The photographic standard since 1992. JPEG throws away detail your eye is least likely to miss, which is why a photograph saved as JPEG is a fraction of the size of the same image saved losslessly.
Good for
- Opens everywhere — no format is more widely supported
- Very small files for photographs and other continuous-tone images
- A quality dial, so you choose the trade against file size
Trade-offs
- Lossy: detail is discarded permanently, and re-saving repeatedly compounds it
- No transparency at all
- Sharp edges, flat colour and text pick up visible halos
image/jpeg
PNG .png
A lossless image format built for graphics rather than photographs. Every pixel it stores comes back exactly as it went in, and it carries a full alpha channel for transparency.
Good for
- Lossless — no generation loss no matter how often you re-save
- Full 8-bit alpha, so edges blend cleanly over any background
- Sharp on text, screenshots, logos and line art
Trade-offs
- Much larger than JPEG for photographs
- No animation in the baseline format
- Large photographic PNGs are slow to transfer
image/png
JPG and PNG side by side
| JPG | PNG | |
|---|---|---|
| Compression | Lossy | Lossless |
| Transparency | No | Yes — 8-bit alpha |
| Animation | No | No |
| Typically used for | Photographs, camera output, web images | Screenshots, logos, UI assets, anything with transparency |
What changes when you convert JPG to PNG
Camera data is removed by default
A JPG straight from a phone or camera carries EXIF metadata — model, settings, timestamp and, quite often, the GPS coordinates of where the photo was taken. The converted PNG is written without it, so a file you are about to share does not quietly carry your location. The orientation flag is read and applied to the pixels first, so the image will not come out sideways once the tag holding it is gone. If you need the metadata kept, there is a setting for it.
How the PNG is written
Our default is maximum compression with adaptive filtering, and fully lossless — lowering the quality dial is what switches PNG to a 256-colour palette, and it is at 100 unless you move it. The quality control on the converter moves this if you need to — the default aims to be indistinguishable from the source at a sensible file size, rather than to win a compression benchmark.
Quality cannot come back
JPG already discarded detail permanently, and PNG stores exactly what it is given. The result will be considerably larger while sounding identical to the JPG you started from — lossless preserves, it does not restore. That is still the right move if you are about to edit, because further saves will not degrade it again.
Other JPEG conversions
Other ways to get PNG
Worth reading next
Why your PNG is so much bigger than your JPEG
The same photograph can be 300 KB as a JPEG and 4 MB as a PNG. Here is what each format is actually doing, and how to tell which one your file wants to be.
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Where your transparent background went
Transparency is the property most often lost silently in a conversion — the file looks perfect until it lands on a coloured background and grows a white rectangle.
5 min read