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Convert JXL to PNG

Turn JPEG XL (.jxl) images into PNG files that open in every app, with transparency kept

Your JXL file

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Real example: what you get

We converted three test images with our JPEG XL to PNG converter at its default settings and measured the files that came out. Measured on October 25, 2026.

Measured results, JPEG XL to PNG at the default settings
Test image	File size, JPEG XL → PNG	Quality
Photo	474.8 KB → 3.1 MB6.7x larger	Identical apart from rounding
Test chart	132.5 KB → 665.3 KB5.0x larger	Identical apart from rounding
Text and graphics	197.9 KB → 1.4 MB7.4x larger	Identical apart from rounding

Photo

JPEG XL and PNG side by side, zoomed in 4x

474.8 KB → 3.1 MB, 6.7x largerIdentical apart from rounding

A nature photo of the Isar river in Munich: water, leaves, sky and a stone bridge. Made from our lossless PNG original, scaled down from 2400 x 1600 to 1600 x 1067 px, with our PNG to JPEG XL converter at its default settings.

Original

JPEG XL474.8 KB

1600 × 1067 px

Preview only: most browsers cannot show JPEG XL files.

Download the JPEG XL file

Converted

PNG3.1 MB

1600 × 1067 px

Scaled-down preview.

Open full size

Quality: Identical apart from rounding. 145 of 5.1 million color values differ by 1 step out of 255; everything else matches exactly.
Color detail: Full: every pixel keeps its own color.

the tower behind the trees, original JPEG XL file, zoomed in 4x — Zoomed in 4x on the tower behind the trees: the real pixels of both files, no smoothing.

the tower behind the trees, converted PNG file, zoomed in 4x — Zoomed in 4x on the tower behind the trees: the real pixels of both files, no smoothing.

Test chart

JPEG XL and PNG side by side, zoomed in 4x

132.5 KB → 665.3 KB, 5.0x largerIdentical apart from rounding

A test chart: color bars, a gray wedge, smooth gradients, fine line pairs and colored text. Made from our lossless PNG original, with our PNG to JPEG XL converter at its default settings.

Original

JPEG XL132.5 KB

1920 × 1080 px

Preview only: most browsers cannot show JPEG XL files.

Download the JPEG XL file

Converted

PNG665.3 KB

1920 × 1080 px

Scaled-down preview.

Open full size

Quality: Identical apart from rounding. 52 of 6.2 million color values differ by 1 step out of 255; everything else matches exactly.
Color detail: Full: every pixel keeps its own color.

red 18 px text on blue, original JPEG XL file, zoomed in 4x — Zoomed in 4x on red 18 px text on blue: the real pixels of both files, no smoothing.

red 18 px text on blue, converted PNG file, zoomed in 4x — Zoomed in 4x on red 18 px text on blue: the real pixels of both files, no smoothing.

Text and graphics

JPEG XL and PNG side by side, zoomed in 4x

197.9 KB → 1.4 MB, 7.4x largerIdentical apart from rounding

A card with text from 12 to 78 px, colored badges, a thin-line chart, text over a photo and transparent rounded corners. Made from our lossless PNG original, with our PNG to JPEG XL converter at its default settings.

Original

JPEG XL197.9 KB

1600 × 1000 px

Preview only: most browsers cannot show JPEG XL files.

Download the JPEG XL file

Converted

PNG1.4 MB

1600 × 1000 px

Scaled-down preview.

Open full size

Quality: Identical apart from rounding. 69 of 6.4 million color values differ by 1 step out of 255; everything else matches exactly.
Color detail: Full: every pixel keeps its own color.
Transparency: Kept exactly: the transparent corners are still transparent.

the 14 px and 12 px text, original JPEG XL file, zoomed in 4x — Zoomed in 4x on the 14 px and 12 px text: the real pixels of both files, no smoothing.

the 14 px and 12 px text, converted PNG file, zoomed in 4x — Zoomed in 4x on the 14 px and 12 px text: the real pixels of both files, no smoothing.

How we measured

Each test image goes through the same converter you use on this page, with its default settings. We then compare the file that comes back with the file that went in, pixel by pixel, both decoded at full size. "Pixel-identical" means every pixel matches.

The quality words come from SSIM, a standard score for how alike two images look, taken in the busiest 5% of each image so that a calm sky cannot hide damaged detail. We set the thresholds by looking at zoomed-in crops of the same images.

The test images are our own: a photo we took and a test chart and text card we drew. We measure again whenever the converter changes.

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More Converters

Image Converters

Convert JXL to PNG online. Upload a JPEG XL (.jxl) image and download a PNG that opens in every image viewer, editor, browser and upload form.

JPEG XL makes small, high-quality files, but many programs and websites still cannot open them. PNG works everywhere, and because it stores every pixel without loss, the PNG looks exactly like your JXL image.

How to Convert JXL to PNG

Choose your JXL file, or drag it onto the upload area.
Click "Run Conversion".
Download the PNG image.

What You Get in the PNG

The same image: the same width, height and colors as the JPEG XL file, with no extra compression added.
Transparency kept: transparent and semi-transparent areas stay transparent, so logos and cut-outs keep their clean edges.
High bit depth kept: a 16-bit JPEG XL image becomes a 16-bit PNG, so smooth gradients stay smooth for further editing.

Expect the PNG to be much larger than the JXL file, often several times the size. That is the price of a format every program can read. If you need a small file rather than a perfect copy, use JXL to JPG or JXL to WebP.

About the JXL and PNG Formats

JPEG XL (.jxl) is a modern image format that compresses photos and graphics better than JPEG and PNG, with support for transparency, HDR and high bit depth. It can also repack an existing JPEG into a smaller file without losing anything. Support is still patchy, so a JXL file often cannot be opened, edited or uploaded where you need it.

PNG (Portable Network Graphics) is a lossless image format supported by practically every device and program. It is the safe choice whenever an image has to keep its full quality and its transparency.

Format Resources

JPEG XL - overview by the JPEG committee
PNG Specification - W3C standard

Related Converters

JXL to JPG - Smaller files for photos
JXL to WebP - Small images for the web, with transparency
PNG to JXL - The other way round

Frequently Asked Questions

How do I convert JXL to PNG?

Upload your JXL file
Click "Run Conversion"
Download the PNG image

Is transparency kept?

Yes. Transparent and semi-transparent areas of the JPEG XL image stay transparent in the PNG, so logos and cut-outs keep their clean edges.

Why is the PNG so much bigger than the JXL file?

JPEG XL compresses images much more tightly than PNG, which stores every pixel without loss. A PNG several times the size of the JXL is normal. For a smaller file, convert JXL to JPG or WebP instead.

Is the conversion free?

Yes. Without an account you can convert images up to 10 MB, 5 a day. A free account raises that to 20 MB and 10 a day, and lets you convert many JXL files at once in a ZIP archive. For more, see our pricing plans.

Are my images secure?

Yes. Uploads travel over encrypted HTTPS, and your JXL file and the PNG are deleted from our servers automatically within 24 hours.

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Conversion time varies by file size; thank you for your patience.
Limits apply to maximum conversions and file size. See available plans on the Pricing page.
Unregistered users: up to 5 conversions/day, up to 50 conversions/month, and 10 MB per file. Sign up to extend your limits.
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