GTI → GBR · Windows

Convert GTI to GBR

Online GIS converters cap file size and need an upload. reaConverter converts GTI to GBR locally, whatever the size of the dataset.

Need to convert GTI to GBR? reaConverter handles batch conversion with ease, processing hundreds of files at once while preserving quality. Your files never leave your machine. No third-party servers, no privacy concerns. Survey and cadastral data stays on your machine, with no upload at any point.

DownloadGTI to GBR ConverterConvert
GTI to GBR
Online
.gti.GBR
4.8

Converting files since 2001

Runs offline — nothing uploaded

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How to Convert Multiple .gti Files to .gbr?

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.

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Install reaConverter

2. Load your GTI files

Launch reaConverter and load the GTI files you want to convert. Add a few files or thousands, batch processing handles them all.

Drag-and-drop GTIs directly into reaConverter or use the folder browser to load entire directories.

Load your GTI files into reaConverter

3. Select GBR as output format

Select GBR as target format and pick where to save results. You can keep default settings or fine-tune the output.

Select GBR as output format

4. Start GTI to GBR conversion

Press Convert to begin processing. You can watch the progress or minimize and let it run in the background.

Start Conversion

Your converted GBR files will appear in the destination folder as soon as processing completes.

Step by step

How It Works

reaConverter offers the fastest, simplest solution for converting your GTI files into GBR without GIS software - all files processed on your PC for maximum privacy and speed.

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Technical note

GTI to GBR: what to expect from the conversion

GTI holds no pixels of its own. It is an index: a list of other raster files plus instructions for mosaicking, clipping or rescaling them, so it converts only when every file it points to is present at the path it records. A GTI copied to another machine on its own produces nothing usable. Converting to GBR renders the assembled result into one real file, which is often the whole reason to do it. How good the result is depends almost entirely on the GTI going in. Clean line art, a logo or a drawing scanned at 300 dpi or more traces into geometry you can work with. A photograph does not: continuous tone has no contours to follow, so tracing it produces thousands of tiny shapes and a file nobody can edit. Scan or export at the highest resolution available, and prefer a lossless original, because compression artefacts along an edge become ripples in the traced path.

Map Data Workflow

Turn GIS data into something anyone can open

A map saved as GBR opens on any computer and any phone. reaConverter produces those from GTI in batch, entirely offline.

  • Render every file in a folder to GBR with the same size and settings
  • Set DPI and output dimensions before the run, not afterwards
  • Pick up new data automatically with Watch Folders, or script the job from the command line

Everything runs on your PC, which matters for cadastral, utility and client data that should not pass through an upload form.

GIS data conversion

User reviews

What people say after the first batch

Average User Rating:4.8
Last updated on September 13, 2026
As a PCB engineer, I rely on reaConverter to batch convert GBR files to PDF and PNG for client reports. It preserves layer accuracy perfectly, and the command-line automation saves me hours per project. Finally, a tool that handles Gerber files without glitches!
Michael Chen
Michael Chen
Senior PCB Designer
Flawless Gerber Conversions – Saved Us Countless Hours! Processes 50+ GBR files at once (drills, copper layers, silkscreens), auto-renames outputs (e.g., ProjectX_top_copper.pdf)
Arthur Hughes
Arthur Hughes
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
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
I was skeptical at first, but reaConverter exceeded my expectations. The interface is intuitive, and the advanced settings let me tweak outputs perfectly. Plus, the customer support is fantastic!
Sarah Lane
Sarah Lane
Satisfied Customer
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

FAQ

GTI to GBR Conversion

What are GTI files?

GTI (Raster Tile Index) is a small file that turns a large collection of map or image tiles into one seamless virtual picture. Instead of storing any pixels, it points to the individual raster files, which may be aerial photographs, satellite scenes, or terrain tiles, and describes where each of them lies on the map. A program that opens the GTI file sees one continuous image and loads only the tiles needed for the visible area, which makes it practical to work with archives of thousands of files without merging them first. The format appeared in 2024 and is stored as a short XML file with the .gti extension, or as a tile index in a GeoPackage or FlatGeobuf file.

What are GBR files?

GBR is part of the Gerber group of formats — a set of standardized extensions used in the printed circuit board (PCB) industry. Gerber files include 2-D representations of various PCB images, such as copper layers, solder mask etc. They can also describe the electrical connections on such boards, or drilling and milling info associated with them. Similar formats include GBS, CMP and SOL.

Can reaConverter convert GTI to GBR?

Yes! reaConverter instantly converts .gti to .gbr 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.

What is reaConverter used for?

reaConverter is a Windows converter for 800+ formats, GIS data among them. For GTI to GBR it replaces the usual detour through QGIS, ArcGIS or ogr2ogr: add the files, pick the output format, and the whole batch converts offline. Surveyors, planners and engineering teams use it to pass data between GIS, CAD and everyday document formats.

Why choose offline conversion with reaConverter?

reaConverter is a software program that is used for offline files conversion. Your proprietary documents never leave your computer – essential for architects, engineers, healthcare and government contractors handling classified projects. Meets GDPR, HIPAA, CCPA, and corporate security policies by ensuring files never cross borders or third-party systems.

Can I convert GTI to GBR online?

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

How can I turn GTI files into GBR on my computer?

The best way to change GTIs to GBRs 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 GTI to GBR.

How can I automate GTI to GBR 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 GTI files to GBR using the command prompt?

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

What else can I do with reaConverter?

Convert GIS filesConvert CAD formatsSet file dateConvert DICOM imagesCrop file

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