GMT Converter

Our fast and easy GMT file converter will help you avoid spending countless hours trying to figure out how to convert multiple .gmt files at once.

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GMT Files
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GMTConverter

How to Convert .gmt Files in Bulk

1. Install reaConverter

Download reliable GMT conversion software to convert multiple .gmt files and folders in one go.
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Install reaConverter

2. Select GMT Files

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

3. Start Conversion

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

Convert GMT on your PC

For quick and effortless GMT 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.

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Do more with your files

Converting GMT 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.

Conversion features
Image editing

User Reviews

Average User Rating:
Last updated on August 29, 2025
"My photography business relies on fast, accurate processing of images. With reaConverter’s Watch Folder, I drop my RAW photos into a folder and they’re instantly converted to high-res JPEGs with custom naming and watermarking. It’s streamlined my post-processing more than I imagined possible."
Emily R.
Emily R.
Photographer
"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
"An efficient all-in-one solution for image conversion and light editing, designed for maximum user-friendliness."
Elena Anderson
Elena Anderson
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
"Security was our top concern when evaluating file conversion tools. reaConverter’s offline mode and role-based access controls let us lock it down for sensitive environments. No unexpected network calls or bloat — just clean, fast conversions. Even passed our pen-testing scans without a hitch."
Marcus White
Marcus White
Healthcare IT
"Creating marketing materials for various platforms requires multiple file versions from single sources. reaConverter's workflow automation lets us generate PNG, JPEG, and SVG variants from AI and PSD files simultaneously. The color profile management ensures brand consistency across all outputs, and the processing speed allows for last-minute changes without delaying deadlines."
Rebecca Turner
Rebecca Turner
Marketing Agency CEO

GMT files: Frequently Asked Questions

What are GMT files?

The .gmt file format is a text-based file format used for storing data related to geographic information. It stands for Generic Mapping Tools and is primarily used by scientists and researchers in the field of geology, geophysics, and oceanography for data visualization and analysis. The .gmt format includes information related to the location and attributes of various features such as coastlines, mountains, and rivers, as well as symbols and labels used to represent these features on a map. It can be used with various software tools, including the Generic Mapping Tools software suite.

Can reaConverter open GMT files?

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

How do I change GMT to another format?

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

Can I convert GMT online?

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

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

The best way to convert GMT 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 GMT.

How can I automate GMT 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 GMT 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 gmt converter.

What else can I do with reaConverter?

Convert vector filesConvert picture color spaceChange format settingsChange image DPIConvert DICOM files

What formats can I convert a GMT file to?
ai  apng  avif  bmp  bpg  cal  cg4  cgm  cin  dcx  dds  dgn  dis  drw  dwf  dwg  dxf  emf  epi  eps  fax  fits  flif  gbr  gif  hpg  hru  ico  iff  iges  igs  jp2  jpeg  jpg  jxl  jxr  mif  mtv  pcl  pct  pcx  pdf  pgm  pic  plt  png  ppm  prc  ps  psd  qoi  qrt  rad  rla  sgi  shp  svg  svgz  tga  tif  tiff  webp  webpll  wmf  wmz  wpg  wrl  xbm  xpm 

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Explore our efficient GMT file converter that saves you time and effort by converting multiple .gmt files into different formats.
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