Plenty of tools are strict about what they accept. A design app wants PNG layers, a developer needs PNG assets for an app build, a document system or badge printer takes PNG only, or a form flatly rejects your .jpg. Whatever the reason, converting a JPEG to PNG is quick, and it comes with a real practical benefit for anyone who plans to edit the image afterward.
That benefit is freedom from recompression. Every time a JPEG is edited and saved as JPEG again, it gets compressed again, and artifacts quietly stack up with each save. Convert to PNG first and that cycle stops: PNG is lossless, so you can open, tweak, and re-save the file as many times as you like without losing another pixel of quality. This is why editors and designers routinely move working copies of JPEG photos into PNG before doing serious retouching.
Be clear-eyed about what the conversion cannot do, though. A PNG made from a JPEG contains exactly the pixels the JPEG had — including any compression artifacts already baked in. It will not sharpen, restore, or upscale anything, and it will not gain a transparent background on its own; JPEGs have no transparency, so the converted PNG is fully opaque until you remove the background in an editor. Expect the PNG to be noticeably larger than the JPEG, since lossless storage takes more space.
The conversion itself happens entirely inside your browser. Convertmaxxing uses WebAssembly to decode and re-encode the image on your own hardware, so the photo is never sent to a server — a meaningful difference when the picture is personal, confidential, or client work under NDA. It is free, requires no signup, and can strip EXIF metadata such as GPS location on the way through if you ask it to.
Why convert JPEG to PNG?
- Satisfy apps, build pipelines, and upload forms that only accept PNG
- Stop generational quality loss — PNG can be edited and re-saved endlessly without recompression
- Optionally strip EXIF data (camera details, GPS coordinates) during conversion
- Nothing is uploaded: the conversion runs in your browser, free, with no account required
How it works
- Step 1
Drop your files
Drag your JPEG files into the converter above, or click “Choose files”. Batches are welcome.
- Step 2
Pick your settings
PNG is preselected. Adjust quality or size if you want, or keep the defaults.
- Step 3
Convert and download
Conversion runs locally in your browser. Download files individually or grab everything as a zip.
Frequently asked questions
- Is the photo sent anywhere when I convert it?
- It is not. Conversion happens locally in your browser via WebAssembly — your JPEG never touches a server, and there is nothing to sign up for. If you want to verify the claim, watch your browser's network tab during a conversion: your photo never appears in any outgoing request.
- Will converting to PNG make my JPEG look better?
- No. PNG stores exactly the pixels your JPEG currently has, artifacts included. What you gain is protection going forward: from this point on, edits and re-saves in PNG lose nothing further, which is the main reason to convert before editing.
- Can I get a transparent background this way?
- Not automatically. JPEG has no alpha channel, so the converted PNG is fully opaque. PNG supports transparency, so once converted you can open the file in an image editor and remove the background — the format will preserve it from then on.
- Why did my file get so much bigger?
- JPEG is lossy and highly compressed; PNG is lossless and is not designed to make photographs small. A 2 MB JPEG turning into an 8–10 MB PNG is entirely normal. If small size matters more than lossless editing, JPEG or WebP remains the better home for the image.
- What happens to the EXIF data in my JPEG?
- You choose. Leave metadata alone if you want it retained, or enable stripping to remove EXIF — including GPS coordinates and camera information — from the output. Stripping is worth considering for anything you will post publicly.