GRD → TGA · Windows

Convert GRD to TGA

GRD to TGA offline, so survey, cadastral and client data never goes through an upload form. No file size limit and no per-file quota.

GRD to TGA conversion is faster with the right tool. reaConverter handles everything from a few files to thousands in one batch. Processes files consistently every time, with full control over quality and output settings. Survey and cadastral data stays on your machine, with no upload at any point.

.grd.TGA
4.8

Converting files since 2001

Runs offline — nothing uploaded

Read what our users say →

How to Convert Multiple .grd Files to .tga?

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.

2. Load your GRD files

Open reaConverter and import your .grd files. No file limits, no slowdowns. Add as many as you need.

Drag files into the window, use the Add Files button, or select entire folders.

Load your GRD files into reaConverter

3. Select TGA as output format

Set TGA as output format and select where to save your converted files. Customize quality settings if needed.

Select TGA as output format

4. Start GRD to TGA conversion

Hit Convert to process your files. The log window shows progress, timing, and status for every file.

Start Conversion

Conversion complete? Your TGA files are saved to the destination folder, ready to use.

Step by step

How It Works

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

Technical note

How GRD and TGA differ in practice

Every cell in a GRD file holds a measurement rather than a colour, usually elevation in metres, running from sea level up to whatever the highest point in the tile happens to be. TGA stores brightness, so the conversion stretches that range across a grey or colour scale. What you get is a readable picture of the terrain, and it is the right thing for a relief map or a figure. What you no longer have is the data: sampling a pixel in the TGA returns a shade, not an altitude. Missing cells in an elevation grid, such as water, radar shadow or the edge of a survey, are not empty: they hold a sentinel value, -32768 in SRTM, -32767 in DTED and very often -9999 in ESRI grids. Counted as a real height, that value stretches the scale so far that the actual terrain collapses into a few near-identical shades. When a TGA output looks flat and washed out, a void treated as data is the usual cause.

Map Data Workflow

Turn GIS data into something anyone can open

Not everyone who needs to see GRD data has GIS software. reaConverter renders it to TGA for a report, an email or a slide, and handles a whole folder in one run.

  • Render every file in a folder to TGA 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
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
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
I'm really impressed with this software - it converts files between formats incredibly fast!
Lin Zhang
Lin Zhang
Happy User
I firmly believe working with JPEG — the universal format supported by all devices and apps—is the wisest choice. reaConverter handles these conversions flawlessly.
Ava Thomas
Ava Thomas
Happy User

FAQ

GRD to TGA Conversion

Can reaConverter convert GRD to TGA?

Yes! reaConverter instantly converts .grd to .tga 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 GRD to TGA 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 GRD to TGA online?

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

How can I turn GRD files into TGA on my computer?

The best way to change GRDs to TGAs 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 GRD to TGA.

How can I automate GRD to TGA 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 GRD files to TGA using the command prompt?

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

What else can I do with reaConverter?

Convert Gerber imagesChange image color spaceConvert CAD formatsSet file dateConvert DICOM images

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Batch conversion, editing, and processing across 800+ formats, from RAW and HEIC to DICOM, DWG, and PDF. Everything runs locally, with no cloud and no upload limits.

Free trial · Windows 10/11 · v8.0.250 · Files never leave your computer

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