Can I convert PNG to JPEG XL on iPhone, Android, Mac or Windows?

Yes. ConvertPixels works in Safari, Chrome, Edge and Firefox on any device, so you can convert PNG to JPEG XL on your phone or computer without installing an app.

Is there a free PNG to JPEG XL converter with no sign-up?

Yes, this one. Converting PNG to JPEG XL on ConvertPixels is free, with no sign-up, no watermark and no daily cap. Convert up to 30 files per batch, each up to 50 MB.

Can I convert PNG to JPEG XL without losing quality?

JPEG XL is a lossy format, but our default quality setting (85) keeps the result visually identical to the original. Turn quality up in the options for maximum detail, or down for a smaller file.

Will the transparent background survive converting PNG to JPEG XL?

Yes. Transparency is supported in both formats and is preserved exactly.

Can I batch convert PNG to JPEG XL?

Yes. Add up to 30 PNG files and convert them in one batch. You can even choose a different output format for individual files, then download them separately or together as a ZIP.

Is it safe to upload PNG files to ConvertPixels?

Yes. Uploads use an encrypted connection and are processed automatically - nobody views them. Your originals are deleted straight after conversion and the results within an hour, or instantly if you click "Delete from server now".

Convert

PNG to JPEG XL Converter

Convert PNG images to JPEG XL online in seconds - free, with no sign-up and no watermark. Batch convert up to 30 files and download them together as a ZIP.

Free
No sign-up
No watermark
Private by design

Choose filesor drag and drop files hereUp to 30 files · 50 MB each

Image Converter

How to use it

1
Drop your PNG files onto the converter
2
Press Convert to turn them into JPEG XL
3
Download your JPEG XL images one by one or as a ZIP

PNG to JPEG XL

Why convert PNG to JPEG XL?

The main difference: PNG is a lossless format, while JPEG XL is a lossy or lossless format.

Smaller files, faster uploads

JPEG XL supports lossy compression, so your file typically ends up a fraction of the PNG size - quicker to attach to an email, upload to a form or load on a web page.

Transparent areas stay transparent

PNG and JPEG XL both handle transparency, so anything see-through in the original is still see-through after conversion.

Lighter images for your website

At the same visual quality, JPEG XL files are noticeably smaller than JPG or PNG. Lighter images mean faster pages, better Core Web Vitals and a small boost for SEO.

PNG vs JPEG XL: what's the difference?

Property	PNG	JPEG XL
Compression type	Lossless (exact pixels, larger files)	Lossy or lossless
Transparent background	Yes	Yes
Animation	No	Yes
Where it opens	All browsers and devices	Safari only (17+)
Used for	Logos, screenshots, graphics, images with text or transparency	High-quality photos in small files, archiving JPGs losslessly

What is a PNG file?

PNG (Portable Network Graphics) is a lossless image format created in 1996 as a patent-free replacement for GIF. It stores every pixel exactly, so text, logos and sharp edges stay perfectly crisp however often you save the file.

PNG supports full transparency, which makes it the standard format for logos, icons, screenshots and graphics placed on top of other designs. For photos, though, PNG files are several times larger than JPG.

How to open a PNG file

PNG opens everywhere: Windows Photos, Mac Preview, iPhone and Android galleries and every web browser. Editors like Photoshop, GIMP, Figma and Canva keep the transparency intact.

Extension: .png
Compression: Lossless
Transparency: Yes
Best for: Logos, screenshots, graphics, text

What is a JPEG XL file?

JPEG XL is a next-generation image format standardized in 2022 as a successor to JPG. It compresses better than JPG and WebP, supports transparency, HDR and animation, and can losslessly repack existing JPGs about 20% smaller.

Adoption is growing - Apple supports it across iPhone, iPad and Mac, and some cameras and photo apps can save it - but many browsers and programs can't open it yet.

How to open a JPEG XL file

Safari 17+, macOS Sonoma and iOS 17 and later open JPEG XL. Photoshop, GIMP, Affinity Photo and darktable support it. On Windows, and in Chrome, convert it to JPG or PNG to view it.

Extension: .jxl
Compression: Lossy or lossless
Transparency: Yes
Best for: High-quality photos in small files