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JXL Converters

Convert JPEG XL (JXL) to and from JPG, PNG and WebP, view JXL files and compress them, free in your browser.

Convert JXL to JPG

8 free tools · no signup · no watermarks

CONVERT FROM JXL

JXL to JPG

Convert JPEG XL files to widely supported JPG

JXL to PNG

Convert JPEG XL files to lossless PNG

JXL to WebP

Convert JPEG XL files to small WebP images

CONVERT TO JXL

JPG to JXL

Convert JPG photos to next-gen JPEG XL

PNG to JXL

Convert PNG images to next-gen JPEG XL

WebP to JXL

Convert WebP images to next-gen JPEG XL

JXL TOOLS

JXL Viewer

Open and view JPEG XL (.jxl) files online

Compress JXL

Reduce JPEG XL file size in your browser

About these jxl converters

Convert JPEG XL (JXL) images to JPG, PNG and WebP, or turn JPG, PNG and WebP into JXL. JPEG XL offers superior compression in both lossy and lossless modes, but browser and app support is still limited, so converting is often the practical move.

Everything runs locally in your browser: open and view JXL files, convert in either direction, and compress them, with your images never leaving your device.

WHICH JXL TOOL TO USE

  • JXL to JPG when you need a copy that opens everywhere
  • JXL to PNG when you need lossless quality or transparency
  • JXL to WebP when the image is going on a website
  • JPG, PNG or WebP to JXL to create next-generation, smaller files
  • JXL Viewer to open and check a .jxl file on any device
  • Compress JXL to shrink a JXL while keeping the format

JPEG XL vs other formats at a glance

Format Compression Transparency Support today
JXL Excellent, lossy and lossless Yes Limited (new format)
JPG Good, lossy only No Universal
PNG Lossless only Yes Universal
WebP Very good, lossy and lossless Yes Wide

What is JPEG XL (JXL)?

JPEG XL, with the file extension .jxl, is a next-generation image format designed to replace both JPEG and PNG. It aims to do everything at once: strong lossy compression for photos, lossless compression for graphics, transparency, HDR and wide colour.

  • Smaller files than JPEG at the same quality, often by 20 to 50 percent
  • A lossless mode that can beat PNG on size with identical quality
  • Can losslessly repack existing JPEGs to make them smaller
  • Supports transparency, HDR and animation in one format

Why is JXL support so limited?

JPEG XL is technically excellent but young. Chrome added it behind a flag and then removed it, Safari added native support in version 17, and Firefox keeps it behind a flag. The upshot is that a .jxl file often will not open in everyday browsers, apps or viewers, even though the format itself is great.

That is exactly why these converters exist: keep JXL as an efficient master copy, and convert to JPG, PNG or WebP whenever you need a file that opens everywhere today.

JXL vs JPEG, WebP and AVIF

  • vs JPEG: JXL is smaller at the same quality and adds lossless and transparency
  • vs WebP: JXL usually compresses better, but WebP is supported far more widely
  • vs AVIF: both are excellent next-gen formats; AVIF currently has broader browser support
  • For the web right now, WebP or AVIF are the safer choices for compatibility

Should you use JXL today?

  • Great as an archival or master format thanks to its compression and quality
  • Risky as a delivery format on the web, since many browsers cannot display it
  • Convert to JPG or PNG for sharing and uploads that must just work
  • Convert to WebP or AVIF for small, web-ready files with real browser support

Explore more image tool hubs

  • WebP Converters: Convert images to WebP for a faster website, or turn WebP files back into JPG and PNG that open anywhere.
  • AVIF Converters: Convert AVIF images to JPG, PNG or WebP, or create AVIF files for the fastest-loading websites.
  • PNG Converters: Convert, compress and edit PNG files: the format for screenshots, logos and transparent graphics.
WebP Converters

JXL Converters FAQ

What is a JXL file?

JXL is the extension for JPEG XL, a next-generation image format with strong lossy and lossless compression, transparency, HDR and wide colour. It is designed to replace both JPEG and PNG.

Is JXL better than WebP or AVIF?

On pure compression and features, JPEG XL is excellent and often edges out both. In practice WebP and AVIF have far wider browser support today, so they are usually the safer pick for the web.

Can I convert JXL back to JPEG losslessly?

JPEG XL can losslessly repack an existing JPEG, but converting an arbitrary JXL to JPG involves a normal lossy re-encode. At quality 90 the result looks identical for everyday use.

Which browsers support JXL?

Safari 17 and later support JPEG XL natively. Chrome removed its support, and Firefox keeps it behind a flag, so most browsers cannot open .jxl files yet.

Does JXL support transparency?

Yes. JPEG XL supports an alpha channel, so transparency is preserved when you convert to or from formats that also support it, such as PNG and WebP.

How do I open a JXL file?

Use the JXL Viewer to open it right in your browser, or convert it to JPG or PNG once so it opens in every app. Both run locally with nothing uploaded.

Are conversions done on your servers?

No. JXL files are decoded and encoded entirely in your browser, so your images never leave your device and there are no size limits or daily caps.