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JPG to JXL

Turn JPG photos into smaller JPEG XL (.jxl) files, in your browser.

Drop images here or click to browse

Processing happens on your device. Nothing is uploaded.

100% Private

Files are processed locally in your browser. They never touch our servers.

Smart Defaults

Sensible settings are applied automatically. Fine tune them only if you want to.

Batch Processing

Drop multiple images at once and download everything together as a ZIP.

How to use JPG to JXL

  1. Drop your images onto the page, or click to pick them from your device
  2. Use the default settings, or adjust the options for your file type and target result
  3. Download the finished images one by one, or save the full batch as a ZIP

What JPG to JXL is for

Use this tool when you need a fast, private way to prepare images for websites, upload forms, email, social media, ecommerce listings, documentation or everyday sharing.

  • Prepare images for websites, email, upload forms and social media.
  • Process one image or a batch of images directly in your browser.
  • Download finished files without creating an account or adding a watermark.
  • Keep your image workflow private by avoiding unnecessary uploads.
Privacy note: This tool runs locally in your browser. Your selected image files are not uploaded to CompressImage.ca. Read more on our promise page.

Best practices for better results

Image optimization works best when you choose the right balance between file size, visual quality, dimensions, format compatibility and privacy. These tips help you get a cleaner result.

  • Start from the original image whenever possible.
  • Review the output before publishing or deleting your original file.
  • Use related tools like resize, convert or metadata removal when you need a more specific result.
  • Choose the right format for the job: JPEG for photos, PNG for sharp graphics and WebP for modern websites.

Convert JPG to JXL in your browser

JPG to JXL creates a next-generation JPEG XL copy of a JPG, with better compression at the same quality and an optional fully lossless mode. JPEG XL is aimed at future-proof storage and archives. The .jxl file is encoded locally in your browser, so your photo never leaves your device.

HOW TO CONVERT JPG TO JXL

  • Drop one or more .jpg files onto the upload area, or click to browse
  • Set the JXL quality, or use 100 for a fully lossless copy
  • Click Convert; the JPEG XL is encoded right on your device
  • Download each .jxl file on its own, or grab the whole batch

Quality setting guide

100

Lossless: identical to the source with no quality loss. The largest JXL, ideal for archiving.

90

Recommended: visually identical to the JPG at a noticeably smaller size. Best for most uses.

75

Smaller: a light quality trade-off for an even smaller file. Good for large libraries.

60

Smallest: visible compression. Use only when size is the top priority.

JXL vs JPG, WebP and AVIF

  • Versus JPG, JXL is smaller at the same quality and adds lossless and transparency
  • Versus WebP, JXL usually compresses better, but WebP is supported far more widely
  • Versus AVIF, both are excellent, though AVIF currently has broader browser support

Keep the original JPG too if you still need to share it widely, since JPEG XL support is limited today. For a web-ready format that works everywhere now, try WebP or AVIF. To go back, use JXL to JPG.

Related image tools

These tools solve similar image optimization problems and work the same way: locally in your browser, with no required upload.

  • 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
  • PNG to JXL: Convert PNG images to next-gen JPEG XL

JPG to JXL FAQ

Why convert JPG to JXL?

JPEG XL offers better compression than JPG at the same quality, plus support for lossless and HDR. It is aimed at future-proof archives and smaller files.

Can I make a lossless JXL?

Yes. Set the quality to 100 for a fully lossless JPEG XL. Lower values produce smaller files that stay visually identical to the JPG.

Will JXL files open everywhere?

Not yet. JPEG XL support is still limited across browsers and apps, so keep the JPG too if you need to share it widely today.

Is my photo uploaded?

No. The JPG is decoded and the JPEG XL is encoded entirely in your browser, so your photo never leaves your device.