Convert JPG to JPEG XL

Convert JPG files to JPEG XL in your browser. JPEG XL files are typically smaller than JPG. Free, no upload, no signup.

Output format

JPEG XL

82%

01 — Overview

Why convert JPG to JPEG XL

JPEG XL files are typically much smaller than JPG at equivalent quality — usually the main reason to make this conversion. Smaller files mean faster page loads, smaller email attachments, and less storage.

02 — Comparison

JPG vs JPEG XL

AttributeJPGJPEG XL
CompressionLossyLossy or lossless
TransparencyNoYes
AnimationNoYes
Typical file sizeMediumSmall
Browser supportUniversally supported. It's been there since the first browsers.Limited — Safari 17+ supports it; Chrome and Firefox are still behind flags or pending. Great for archival and apps that control their own decoder.

03 — How to

Three steps

  1. 01

    Drop your JPG files

    Drag one or more JPG files onto the dropzone above, or click to browse. Files stay on your device — nothing uploads.

  2. 02

    Convert in your browser

    convert.now decodes each JPG and re-encodes it as JPEG XL via WebAssembly. The conversion runs in a Web Worker so the page stays responsive.

  3. 03

    Download the result

    Download a single JPEG XL file or, for batch conversions, a zip of all converted files. Filenames preserve the originals.

04 — Pillars

Why convert.now

  • Private

    Files stay in your browser. No upload step. Nothing for anyone to see.

  • Fast

    No queue, no upload wait. Conversion starts the moment you drop a file.

  • Free

    No ads. No file-count limit. No sign-up wall. Just the converter.

05 — FAQ

Frequently asked

No. The conversion from JPG to JPEG XL runs entirely in your browser using WebAssembly. Files never leave your device. Open DevTools' Network tab if you'd like to verify — there are no network requests with file contents.

06 — More

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