Convert JPG to PNG
Some tools simply insist on PNG — icon generators, print-on-demand uploaders, certain CMS image fields — even when your source is a JPG. Others reach for PNG before editing, so repeated saves don't stack JPEG compression on top of itself. Either way, this converter handles it entirely on your machine.
Content last reviewed 2026-07-14.
Preconfigured for JPEG input — other formats work too.
Converting to PNG: Lossless format with full transparency — ideal for graphics, logos and screenshots.
or drag & drop images here, or paste from your clipboard
PNG, JPG, WebP, AVIF, GIF, BMP, TIFF, HEIC, SVG
Your images are processed on your device and are not uploaded to PNGful.
How it works
- 1
Add JPG files
Drop, pick or paste — batch conversion is supported.
- 2
Conversion runs locally
Each file is decoded and re-encoded as PNG in your browser — nothing is uploaded.
- 3
Adjust if needed
Lossless output — no quality settings needed.
- 4
Download
Single files or everything as a ZIP.
Why convert JPG to PNG?
- From the moment of conversion onward, saves are lossless — no more generational quality loss during editing.
- Satisfies uploaders and tools that only accept PNG files.
- Pixel-exact preservation of the image as it currently exists.
- No account, no watermark, no upload — free and local.
Good to know
- Conversion is faithful, not restorative: JPEG artifacts already baked into the file are carried over exactly, not cleaned up.
- The PNG will be considerably larger than the JPG — usually several times larger for photographs — because lossless storage of photo data is expensive.
- JPG has no transparency, so the resulting PNG is fully opaque. Conversion doesn't create a transparent background.
- PNG is a sensible intermediate format for editing: you can open, modify, and re-save it repeatedly without further quality loss.
Your images stay private
Your images are processed on your device and are not uploaded to PNGful.All processing happens locally using your browser's own image engine — there is no upload step, no server-side queue, and nothing to delete afterwards. Read more in our privacy policy.
Frequently asked questions
Does converting a JPG to PNG improve its quality?
No. The PNG contains exactly the pixels the JPG decodes to, including any compression artifacts the JPG already had. What PNG gives you is a guarantee that no additional quality will be lost in future saves.
Why did my file get so much bigger?
JPEG achieves small files by discarding detail; PNG discards nothing. Storing photographic data losslessly simply takes more bytes — a 500 KB JPG becoming a multi-megabyte PNG is completely normal.
Will the PNG have a transparent background?
No. JPG files can't contain transparency, so there's none to preserve — the PNG comes out fully opaque. Making a background transparent requires an editing step to remove it; format conversion alone can't do that.
When is JPG to PNG actually worth doing?
Two main cases: a tool or form that only accepts PNG, and workflows where you'll edit and re-save the image multiple times. If you're just sharing or storing a photo, keeping it as JPG is usually the better call.
Does my photo get uploaded during conversion?
No. PNGful processes images inside your browser, so the JPG is decoded and the PNG written entirely on your own device. Nothing is sent over the network.
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