Convert JPEG to PNG
We turn JPEG into PNG right in your browser — the file never goes to a server.
What you will lose
Nothing important: the target format does everything the source does.
How they differ
| JPEG | PNG | |
|---|---|---|
| Lossless | no | yes |
| Lossy | yes | no |
| Transparency | no | yes |
| Animation | no | no |
| Released | 1992 | 1996 |
| Author | Joint Photographic Experts Group | PNG Development Group |
JPEG
Good at
- Compresses photos tightly, and the loss is hard to notice
- Opens literally everywhere, including old devices and printers
- Fast to encode and open, easy on the device
Awkward about
- Lossy: every re-save degrades the image a little more
- No transparency — it turns white or black
- Visible halos appear around text and sharp edges
Use it when
- Photos that will not be edited further
- When the file has to open for absolutely anyone
PNG
Good at
- Lossless: pixels stay exactly as they were
- Full transparency, including soft semi-transparent edges
- Opens everywhere without exception — the format is nearly thirty years old
Awkward about
- Photos weigh several times more than in JPEG or WebP
- No animation: APNG support is far from universal
Use it when
- Screenshots, diagrams, logos — anything with sharp edges and text
- When you need transparency
- When the image will be edited further
Common questions
- Does the file get uploaded to a server?
- No. JPEG → PNG runs right in your browser and the file never leaves your device. It only goes to a server if the browser cannot cope — and then we delete it within a couple of hours.
- Will transparency survive?
- Yes, PNG supports transparency, so semi-transparent edges stay as they were.
- Can I get the original quality back afterwards?
- Yes, PNG supports lossless compression, so you can go back to the original.
- How many files, and how large?
- Up to 30 files at a time, 50 MB each. No sign-up, no watermarks.