Convert TUB to JXL

TUB to JXL made simple. Add files or folders, pick your settings, click Convert. reaConverter handles the rest — even thousands of files.

Looking to change TUB files to JXL format? reaConverter makes it simple — add your files, select output format, and convert entire folders in one click. Runs entirely on your hardware for maximum speed — no waiting for uploads or server queues.

Download
reaConverter
Convert
TUB to JXL
Online
Convert

How to Convert Multiple TUB Files to JXL?

1. Download and Install reaConverter

reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately.

reaConverter logo
Install reaConverter

2. Load your TUB files

Start reaConverter and add your .tub files. The software processes everything locally, so your files never leave your computer.

Use drag-and-drop, folder browser, or right-click conversion from Explorer.

Load your TUB files into reaConverter

3. Select JXL as output format

Select JXL from 700+ supported output formats. Choose your destination folder and adjust settings to match your needs.

Select JXL as output format

4. Start TUB to JXL conversion

Click Convert to start the batch. reaConverter processes files quickly and shows you the status of each one.

Start Conversion

Once done, reaConverter shows a summary. Click 'Show converted files' to jump straight to your JXL output.

TUB to JXL Converter

reaConverter offers the fastest, simplest solution for converting your TUB files into JXL in seconds - all files processed on your PC for maximum privacy and speed.

Download Free Trial

Do more with your files

Converting TUB files for use in a workflow? reaConverter offers many ways to process files, so you can customize them according to your requirements.

Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.

Conversion features
Image editing

User Reviews

Average User Rating:
Last updated on January 24, 2026
"reaConverter’s Watch Folders feature has transformed my workflow! I set it to automatically convert my images to JXL, and now every new file I add gets optimized instantly. JXL keeps my photos crisp at half the file size of JPEGs. Super easy setup, flawless results – a must for batch processing!"
Alex R.
Alex R.
Photographer
"Switching to JXL format with reaConverter was effortless. The compression is incredible - my images look perfect at half the file size of JPEGs. The batch conversion works flawlessly, saving me storage space without sacrificing quality. JXL is clearly the future, and reaConverter makes adoption painless!"
Mark T.
Mark T.
Satisfied Customer
"An ultra-fast solution for minimizing file sizes. The entire conversion process takes just 3 minutes!"
Logan B.
Logan B.
Satisfied Customer
"I use the online converter — it’s quick and hassle-free!"
Jian Wong
Jian Wong
Happy Online User
"Working in a print studio means constantly juggling obscure file formats. I used to waste hours Googling converters or installing random software — until reaConverter became my Swiss Army knife. Install it once, and you're set forever. No internet? No problem!"
Helen Evans
Helen Evans
Satisfied Customer
"An efficient all-in-one solution for image conversion and light editing, designed for maximum user-friendliness."
Elena Anderson
Elena Anderson
Happy User

TUB to JXL Conversion: FAQ

What are TUB files?

The TUB format is associated with Corel PaintShop Pro, which is one of the most popular programs used for advanced image editing and drawing. TUB files are also known as "picture tubes" and represent basic images with no background that can be used for creating more complex images. TUBs are probably impossible to open outside PaintShop, so in case you don't have it installed, the best option is to have them converted to more accessible formats.

What are JXL files?

JPEG XL JXL is a modern image compression format designed to replace older formats like JPEG, PNG, and even WebP. It aims to provide superior image quality at smaller file sizes while supporting advanced features for both web and professional use.

Can reaConverter convert TUB to JXL?

Yes! reaConverter instantly converts .tub to .jxl with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert TUB to JXL online?

If you only need to convert a few TUB files to JXL format, feel free to try our free online free online TUB to JXL converter — perfect for small batches with no installation needed!

How can I turn TUB files into JXL on my computer?

The best way to change TUBs to JXLs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from TUB to JXL.

How can I automate TUB to JXL files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert TUB files to JXL using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line tub to jxl converter for batch processing.

What else can I do with reaConverter?

Convert DICOM filesResize pictureConvert GIS filesConvert Gerber filesCrop pictures

Find out more

Get advanced software for file conversion, processing, and editing, giving you complete, precise control over your work.
Download
reaConverter
Buy Now
reaConverter software