GTZ Converter

Offline GTZ converter with professional output. reaConverter keeps your files secure while you work.

GTZConverter

How to Convert .gtz Files in Bulk

1. Install reaConverter

Download reliable GTZ conversion software to convert multiple .gtz files and folders in one go.

2. Select GTZ Files

Select GTZs from a folder or drag and drop them into reaConverter, then choose the desired output format.
reaConverter - Load GTZ files

3. Start Conversion

Click Convert to start the bulk conversion of all selected GTZ files. The process will begin right away.
reaConverter - Start GTZ conversion

Convert GTZ on your PC

For quick and effortless GTZ file handling on your PC, reaConverter offers powerful conversion tools with batch processing. Best of all, it works entirely offline — ensuring your sensitive data never leaves your computer.

Do more with your files

Converting GTZ files for use in a larger project? 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.

Image editing

User Reviews

Average User Rating:
Last updated on November 26, 2025
"reaConverter is pure gold! Rock-solid performance with zero crashes. No internet needed—perfect for travel or low-connectivity work. The ultimate offline alternative to sketchy web converters. Plus, the desktop version keeps sensitive files secure since nothing ever gets uploaded to the cloud."
Malik T. Martin
Malik T. Martin
Satisfied Customer
"This program is incredibly simple and user-friendly, even beginners can use it with ease. It supports batch processing, works offline, and runs smoothly on my aging Acer Aspire laptop. Best of all, the output quality is outstanding!"
Kevin Harris
Kevin Harris
Happy User
"Exactly what I needed! Simple, fast, and no bloat. I use reaConverter Lite to resize and convert batches of images for documents. The presets make it super easy, and everything works smoothly."
Mark Jones
Mark Jones
Happy User
"The step-by-step video makes conversion foolproof. I'd recommend this to my grandma - it's that well-explained!"
DeShawn M. Thompson
DeShawn M. Thompson
Happy User
"Your solution was buried deeper in search results than it should be. After struggling with unclear alternatives, I found your guides — finally, instructions that made sense for a first-time user like me. Excellent work!"
Richard E. Miller
Richard E. Miller
Satisfied Customer
"5/5⭐ Finally! Does what it promises - converts AND tweaks images without complicated menus. Perfect for quick jobs."
J. Mitchell
J. Mitchell
Satisfied Customer

GTZ files: Frequently Asked Questions

Can reaConverter open GTZ files?

reaConverter fully supports the GTZ file format – open, edit, and export GTZ files to any other popular file format with ease.

How do I change GTZ to another format?

reaConverter is a user-friendly tool for converting GTZ files. Once installed on your computer, it allows you to convert all your .gtz files at once with just a few clicks. You can even convert gtz images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert GTZ online?

If you only want to convert a few GTZ files, you are welcome to try our free online GTZ converter.

How can I turn GTZ files on my computer to another format?

The best way to convert GTZ files on your PC is to get 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 GTZ.

How can I automate GTZ files conversion?

reaConverter supports all the essential automation features, such as right-click сonversion and Watch Folders, for the most efficient automated file conversion in any software of its kind.

Can I convert GTZ files using scripts or the command-line interface?

reaConverter provides full access to all its features from the Windows command-line shell, including the command-line gtz converter.

What else can I do with reaConverter?

Convert DICOM filesResize pictureConvert PDF filesWatermark imagesChange file creation date

What formats can I convert a GTZ file to?

Discover more

Explore our efficient GTZ file converter that saves you time and effort by converting multiple .gtz files into different formats.
reaConverter software