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GBL Converter
Free GBL conversion that runs on your own computer. Nothing is uploaded, nothing is stored. The Windows app converts to 700+ formats in batch.
How to Convert .gbl Files in Bulk
1. Install reaConverter
2. Select GBL Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless GBL 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.
Extra Tools
Do more with your files
Converting GBL 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.
User reviews
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Average User Rating:Last updated on June 26, 2026
Questions & Answers
GBL files: Frequently Asked Questions
What are GBL files?
The GBL file format is a type of Gerber file that is primarily used in the manufacture of printed circuit boards (PCBs). Gerber files are essentially 2D image files that contain information about the different layers, traces, and components that are used to create a PCB. The GBL file format specifically refers to the file that contains information about the copper layers of a PCB.
The GBL format specifies the shape and location of the copper parts of a PCB, including the traces, pads, and vias. These files are generated by PCB layout software, and are used by manufacturers to create the copper layers of a PCB using photolithography or other methods.
GBL files are typically generated along with other Gerber files, such as GTO (silk screen), GTP (solder paste), and GTS (solder mask) files, which provide information about other aspects of the PCB design. Together, these files form a complete set of instructions for the manufacture of a PCB.
Can reaConverter open GBL files?
reaConverter fully supports the GBL file format – open, edit, and export GBL files to any other popular file format with ease.
How do I change GBL to another format?
reaConverter is a user-friendly tool for converting GBL files. Once installed on your computer, it allows you to convert all your .gbl files at once with just a few clicks. You can even convert gbl images directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert GBL online?
If you only want to convert a few GBL files, you are welcome to try our free online GBL converter.
How can I turn GBL files on my computer to another format?
The best way to convert GBL 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 GBL.
How can I automate GBL 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 GBL 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 gbl converter.
What else can I do with reaConverter?
Change format settingsCopy metadata (EXIF, IPTC)Convert RAW photosConvert medical imagesChange photo size
What formats can I convert a GBL file to?
Discover More
Beyond GBL conversion
Convert .gbl 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.
