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By the AllFileBox Team · Last updated: 2026-06-26

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JPG to PNG is a free online tool that converts JPG photos into lossless PNG images in your browser, giving you a format that supports transparency and sharp edges with no upload required.

What changes from JPG to PNG

JPG is a lossy format that compresses photos into small files but adds subtle artifacts and cannot store transparency. PNG is lossless and supports an alpha channel, so it keeps edges crisp and can have a transparent background. Converting does not recover detail JPG already discarded, but it gives you a clean, editable base for graphics work.

When PNG is the right format

Use PNG when you need transparency, when an image is mostly text or line art, or when it will be edited repeatedly, because lossless saving never degrades it. Logos, icons, screenshots, and diagrams all belong in PNG. PNG supports over 16 million colors plus an alpha channel, so it handles both flat graphics and detailed images.

File size expectations

Because PNG is lossless, the resulting file is usually larger than the original JPG, sometimes several times the size for a photograph. That is the cost of removing compression artifacts and gaining transparency. For photos you intend to keep small, JPG or WebP is better; for graphics and editing, the larger PNG is worth it.

Private, in-browser conversion

JPG to PNG runs entirely in your browser. The photo is drawn to a canvas and re-encoded as PNG locally, then handed back as a download. Nothing is uploaded or stored, so personal photos and screenshots never leave your device. The whole conversion takes a fraction of a second.

Cómo Usar JPG a PNG

  1. Open the JPG to PNG tool and add your image.
  2. Let the tool draw the photo to a canvas in your browser.
  3. Confirm the conversion to lossless PNG.
  4. Review the result on screen.
  5. Download the PNG image.

Prepare a logo for editing

Prepare a logo for editing

Convert a JPG logo to PNG so you can work with crisp edges and add transparency in a graphics editor.

Keep a screenshot sharp

Turn a JPG screenshot into lossless PNG so the text stays clear when you crop or annotate it.

Create an overlay base

Convert to PNG so you can later remove the background and place the image over another.

JPG versus PNG at a glance
FeatureJPGPNG
CompressionLossyLossless
TransparencyNoYes
Best forPhotosGraphics and text

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