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JPEG to PNG

JPEG to PNG

Convert JPG photos to PNG format and remove solid backgrounds in one step.

Drop JPEG image(s) here

or click to browse • Up to 50 JPEG files

Max 100MB per fileUp to 50 files

How to Convert JPEG to PNG with Transparency

How to Use JPEG to PNG

  1. 1

    Upload JPEG

    Choose the JPG or JPEG image you want to convert.

  2. 2

    Optional Background Knockout

    Select solid background color (e.g. white or black) to convert into pure transparency.

  3. 3

    Download PNG

    Download your lossless PNG image.

What JPEG to PNG Can Do

  • Exact Pixel Copy

    PNG stores every pixel of the JPEG exactly, so the image will not degrade again on future saves.

  • Background Color Keying

    Knocks out solid white or black backgrounds into transparent alpha channels.

  • Optional Colour Reduction

    Rounds colours onto a smaller set with Floyd-Steinberg dithering for smaller PNGs.

  • Local & Fast

    Convert dozens of images in seconds without server waiting times.

Tools & Settings Reference

Background Knockout
Removes solid background colors (e.g. pure white #FFFFFF) with tolerance tuning.
Reduce Colours
Rounds colours onto a coarser ladder so the PNG compresses harder. Still a full-colour PNG; each result reports the count it got.

Frequently Asked Questions

You pick the background colour — from a preset, the colour box, or by clicking the photo — and every pixel within the tolerance distance of that colour becomes transparent, with a soft band at the edge of the tolerance so the boundary is not jagged. It is worth knowing that this is a colour test across the whole image, not an edge trace: if the same colour also appears inside your subject, it will be knocked out there as well. For a photo where the subject and background share tones, the AI Background Remover is the better tool.

No, and this is the most common misunderstanding about the conversion. PNG is lossless, which means it reproduces exactly what it is given — including every blocking artifact and colour smear the JPEG already contains. You get a faithful, permanent copy of a lossy image, not a repaired one. The detail JPEG discarded is gone from the file and no format change can bring it back.

Because you removed the compression that was making it small. A JPEG of a photograph stores an approximation in a fraction of the space; PNG stores every pixel exactly and, for photographic content, that routinely means a file five to ten times larger. This is expected rather than a fault. If you need a smaller lossless-quality file, WebP in lossless mode is usually meaningfully smaller than PNG for the same pixels.

Three cases make it worthwhile. When you need transparency — knocking a white background off a logo, for example, which JPEG cannot represent at all. When the file is about to be edited repeatedly and you want a lossless working copy so that repeated saves stop degrading it. And when a system you are submitting to accepts only PNG. Converting a photograph you simply want to keep or share is not one of these.

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