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JPG to PNG Converter

Convert JPG images to PNG entirely in your browser — no upload, no sign-up. PNG is lossless and supports transparency, which keeps edges crisp — but files are larger.

Your files never leave your device.

Drop images here, or click to choose

JPG, PNG, WebP · batch supported · nothing is uploaded

No upload — and you can prove it

Everything runs on your device. Open your browser's Network tab while you work — you'll see no file leave your computer. You can even disconnect from the internet after this page loads and the tool keeps working.

How to convert JPG to PNG

  1. Drag & drop your JPG file(s) below (or click to choose). You can convert several at once.
  2. The output format is already set to PNG — no need to change it.
  3. Quality only affects JPG output, so this step is skipped for PNG.
  4. Download the converted PNG file, or all of them as a ZIP.

When to convert JPG to PNG

JPG-to-PNG conversion doesn't shrink a file — PNG is lossless, so it almost always produces a *larger* file than the JPG you started with. The real reason to convert is preparing a photo for further lossless editing (each PNG save preserves every pixel, so repeated edits don't compound compression artifacts) or because a tool downstream (a print workflow, a design app, an icon generator) specifically requires PNG input.

Real file-size examples

We ran two real images through this exact conversion and measured the result — a photograph and a flat, UI-style graphic (icons/screenshots behave differently from photos, so we show both):

1920×1080 photo (1920×1080)

406.9 KB → 5.03 MB (+1166% larger)

1600×900 flat/UI graphic (1600×900)

57.1 KB → 81.9 KB (+43% larger)

Frequently asked questions

Is the JPG to PNG converter free?
Yes — completely free, unlimited, and no sign-up.
Do my files get uploaded?
No. Conversion happens locally in your browser; your files never leave your device.
Will I lose quality converting JPG to PNG?
PNG is lossless, so converting won't add new compression artifacts — but the file will usually be larger, not smaller. Detail already lost in a lossy JPG source can't be restored.
Does PNG support transparency?
Yes, PNG preserves transparent backgrounds.

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