GTL Converter

Free GTL conversion that runs on your own computer. Nothing is uploaded, nothing is stored. The Windows app converts to 700+ formats in batch.

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GTL
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GTLConverter

How to Convert .gtl Files in Bulk

1. Install reaConverter

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

2. Select GTL Files

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

3. Start Conversion

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

Convert GTL on your PC

For quick and effortless GTL 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 GTL 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 June 26, 2026
"Rare software that actually does it all! Converts anything, beautiful interface, and never lets me down. A must-have!"
Henry R.
Henry R.
Happy User
"For cross-platform compatibility, JPEG remains the gold standard. reaConverter’s precision conversions ensure perfect results every time, whether for presentations, websites, or client deliverables."
Paul Baker
Paul Baker
Happy User
"For agencies handling confidential data, reaConverter eliminates cloud-upload risks while delivering unmatched conversion reliability. Our team uses it both in-office and remotely with identical results."
Jamal Bailey
Jamal Bailey
Satisfied Customer
"This software just works! My old laptop can’t handle Photoshop, but reaConverter flies through conversions without breaking a sweat. Wi-Fi gone? Still strong!"
Robert Williams
Robert Williams
Happy User
"I deal with hundreds of images daily, and reaConverter has been a lifesaver. The Watch Folders feature lets me automate file conversions without lifting a finger. I set up a folder for incoming files and it automatically resizes, renames, and converts them into the formats I need. It's like having a personal assistant!"
Sarah T.
Sarah T.
Graphic Designer
"We use reaConverter in our department to handle image and document conversions for multiple teams. The Watch Folders function is brilliant — I configured different folders for different workflows, and now everything happens automatically in the background. No more manual conversions or missed files. Rock-solid performance!"
James L.
James L.
IT Manager

GTL files: Frequently Asked Questions

What are GTL files?

The GTL file format typically refers to Gerber files, which are used in printed circuit board (PCB) manufacturing. Gerber files contain the manufacturing data for PCBs, including the exact location and shape of conductive traces, holes for components, and other design elements. They are used to communicate the PCB design from the design software to the manufacturer, who will use the files to create the PCB. The .gtl extension is sometimes used instead of the more common .gbr extension for Gerber files, but the file format is the same.

Can reaConverter open GTL files?

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

How do I change GTL to another format?

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

Can I convert GTL online?

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

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

The best way to convert GTL 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 GTL.

How can I automate GTL 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 GTL 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 gtl converter.

What else can I do with reaConverter?

Convert DICOM imagesResize pictureConvert CAD formatsChange image bit depthConvert vector images

What formats can I convert a GTL file to?
ai  apng  avif  bmp  bpg  cal  cg4  cgm  cin  cit  dcm  dcx  dds  dgn  dis  drw  dwf  dwg  dxf  emf  epi  eps  fax  fits  flif  gbr  gif  glb  gltf  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  step  stl  stp  svg  svgz  tga  tif  tiff  u3d  webp  webpll  wmf  wmz  wpg  wrl  x3d  xbm  xpm 

Beyond GTL conversion

Convert .gtl files in batches of any size, with editing and processing applied along the way. The same tool also handles 700+ other formats, including CAD, medical imaging, and GIS.
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Free trial · Windows 10/11 · 64-bit · v8.0.242 · Files never leave your computer
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