JPG to PNG — Convert JPEG to Lossless PNG Online
Convert JPG and JPEG photos to lossless PNG that keeps crisp edges and survives further editing without new compression. Expect a larger file — PNG trades size for fidelity.
When to use it
- Preparing an image for editing so repeated saves don't add JPEG compression artifacts.
- Getting a format that supports transparency before cutting out a background.
- Placing a photo into a design tool or document that expects PNG.
- Converting a screenshot saved as JPG back to crisp, lossless PNG.
Features
- Convert JPG/JPEG to PNG
- Lossless output (no further compression)
- Keeps the original dimensions
- Ready for transparency and editing
- Download the PNG image
About JPG to PNG
JPG to PNG re-encodes a JPEG into PNG, a lossless format. JPEG throws away detail to stay small, and every re-save adds more artifacts; PNG stores pixels exactly, so once converted the image won't degrade further as you edit and re-export it. The conversion can't recover detail JPEG already discarded, and because PNG is lossless the file usually gets noticeably larger. PNG also supports transparency, which makes it the right target when you plan to cut out a background or layer the image.
How to use this tool
- Upload a JPG image.
- Click Convert to PNG.
- Download the PNG file.
Examples
photo.jpg · 420 KB · lossy JPEG
photo.png · ~2.1 MB · lossless
Identical pixels and dimensions, but PNG is lossless so the file is several times larger.
Tips & gotchas
- PNG is lossless, so the file almost always grows compared to the JPG — that is expected, not an error.
- Converting can't undo JPEG damage already baked in; existing compression artifacts carry over into the PNG.
- Use PNG for screenshots, logos, line art, and anything you'll edit; keep JPG (or WebP) for photos you just need to display small.
- If you need transparency, convert to PNG first, then erase the background — JPG can't hold an alpha channel.
Specifications
| Input | JPG / JPEG (lossy) |
|---|---|
| Output | PNG (lossless) |
| Transparency | Supported by PNG (source JPG has none) |
| File size | Usually larger than the source JPG |
This tool runs in your browser. Your files and text are not uploaded to our servers, and we do not store your input.
Frequently asked questions
Why convert JPG to PNG?+
PNG is lossless and supports transparency, so it's the right choice when you'll edit the image repeatedly or need crisp edges without compression artifacts building up.
Will the PNG be larger than my JPG?+
Almost always, yes. PNG stores every pixel exactly while JPG discards detail to stay small, so for photos PNG can be several times larger. That's the cost of lossless quality.
Will converting improve the image quality?+
No. Conversion can't recover detail JPEG already removed; any existing artifacts remain. It only prevents new loss from future saves.
Does the converted PNG have a transparent background?+
Not automatically — the JPG has no transparency to carry over, so the PNG is fully opaque. PNG supports transparency, so you can erase the background after converting.
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