The ultimate, ultra-fast, and mathematically lossless JPEG XL batch converter for Linux.
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JXL-Pure is designed for power users who want to reclaim massive amounts of disk space (20-50%) without losing a single bit of image quality. Optimized for modern CPUs (like Ryzen) and large image collections on local or portable HDDs.
Install JXL-Pure to your system with a single command:
curl -sSL https://raw.githubusercontent.com/void0x14/JXL-Pure/main/install.sh | bash- 🎯 100% Mathematically Lossless: Uses
-d 0and--lossless_jpeg=1to ensure bit-for-bit accuracy. - 🚀 Lightning Fast Discovery: Powered by
fd-findfor near-instant file scanning even on 1TB+ drives. - 💾 Massive Space Savings: Save up to 50% storage space while keeping your memories in state-of-the-art JPEG XL format.
- 🔄 Resumable Logic: Interrupted? No problem. The script automatically skips already converted files.
- ⚙️ Flexible Effort Levels: Choose between "I need it now" (Effort 1) and "I want the smallest file" (Effort 9).
- 🛡️ Safety First: Optional
--delete-originalsonly triggers after a verified successful conversion. - 🐧 Universal Linux Support: Native scripts for both Bash and Fish Shell.
Ensure you have the following tools installed (Available on Arch/CachyOS AUR):
sudo pacman -S libjxl fdgit clone https://github.com/void0x14/JXL-Pure.git
cd JXL-Pure
chmod +x jxl-pure.sh convert.fish./jxl-pure.sh /path/to/my/photos./jxl-pure.sh /run/media/hdd/photos --delete-originals --effort 3| Argument | Description | Default |
|---|---|---|
[path] |
Target directory to process | . (Current) |
--delete-originals |
Delete JPEGs/PNGs after successful JXL creation | false |
--effort [1-9] |
Compression level (1=Fastest, 9=Max Compression) | 7 |
-h, --help |
Show help information | - |
| Effort | Speed | Compression | Use Case |
|---|---|---|---|
| 1 (Lightning) | ⚡⚡⚡ | High | Large archives (1TB+) where time is money. |
| 3-4 (WebP-like) | ⚡⚡ | Very High | Sweet spot. Best balance for most users. |
| 7 (Squirrel) | 🐢 | Maximum | Small collections where every byte counts. |
Forks and Pull Requests are welcome! If you find a bug or have a feature request, please open an issue.
This project is licensed under the MIT License - see the LICENSE file for details.
Developed with ❤️ for the Linux community.