XL Converter

XL Converter is an easy-to-use image converter for modern formats.

Downloads

Version 1.0.2 (2024-08-07)

Windows

Windows 10 or later

Installer

Available on Scoop as extras/xl-converter

Linux

Ubuntu 22.04 or later
fuse installed

Installer
AppImage

Installer: Unpack then run./install.sh

Features

Batch convert to JPEG XL, AVIF, WebP, and JPEG with parallel encoding.

JPEGLI

Encode good-old JPEGs with up to 35% better compression.

JPEG XL and AVIF

Achieve high quality at a small size with JPEG XL and AVIF.

JPEG -> JPEG XL -> JPEG

Compress JPEGs losslessly then reconstruct them when needed.

Scale down your images with various modes.

User-friendly

Just drag ‘n drop your files and convert.

Resources

Docs

Learn how to best use XL Converter.

Manual
Report Bug

Donate

Support the development.

Donate

Source

Licensed under GPLv3.

Source Code
Changelog
Older Versions

Screenshots

Widely Used

Featured on the supported_software list in the official JPEG XL repository.

Listed on jpegxl.info

Used by hundreds of people.

Full Feature List

  • Conversion
    • Batch conversion to JPEG XL, AVIF, WebP, JPEG and PNG
    • Lossless JPEG Recompression and Reconstruction
    • Fast parallel encoding
    • Top quality JPEG with JPEGLI
    • Top quality AVIF with AOM AV1
    • Keep folder structure
    • Scaling to resolution, shorter (or longer) side, and file size
    • Metadata handling with ExifTool
    • Format-independent downscaling to file size
    • Smallest Lossless (OxiPNG vs WEBP vs JPEG XL)
  • User Experience
    • Clean interface
    • Drag ‘n drop
    • Dark theme
    • Good defaults
    • Lightweight Qt-based GUI
  • Quality of Life
    • Privacy-focused
    • No internet connection required
    • No ads, no telemetry, no annoyances