Convert KOA to GBR

KOA to GBR made simple. Add files or folders, pick your settings, click Convert. reaConverter handles the rest — even thousands of files.

Looking to change KOA files to GBR format? reaConverter makes it simple — add your files, select output format, and convert entire folders in one click. Runs entirely on your hardware for maximum speed — no waiting for uploads or server queues.

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KOA to GBR
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How to Convert Multiple KOA 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 KOA files

Start reaConverter and add your .koa files. The software processes everything locally, so your files never leave your computer.

Use drag-and-drop, folder browser, or right-click conversion from Explorer.

Load your KOA files into reaConverter

3. Select GBR as output format

Select GBR from 700+ supported output formats. Choose your destination folder and adjust settings to match your needs.

Select GBR as output format

4. Start KOA to GBR conversion

Click Convert to start the batch. reaConverter processes files quickly and shows you the status of each one.

Start Conversion

Once done, reaConverter shows a summary. Click 'Show converted files' to jump straight to your GBR output.

KOA to GBR Converter

reaConverter offers the fastest, simplest solution for converting your KOA files into GBR in seconds - all files processed on your PC for maximum privacy and speed.

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Do more with your files

Converting KOA files for use in a workflow? 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 January 25, 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
"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
"An efficient all-in-one solution for image conversion and light editing, designed for maximum user-friendliness."
Elena Anderson
Elena Anderson
Happy User

KOA to GBR Conversion: FAQ

What are KOA files?

The KOA format is associated with Koala Paint or Koala Painter, a very basic drawing program used during the 1980s on the Koala Pad. The latter was an incipient form of graphics tablet which attached to some models of home computers that were popular at the time, including the Commodore 64 and Atari. The KOA format is currently considered archaic and rare.

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 KOA to GBR?

Yes! reaConverter instantly converts .koa 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.

Can I convert KOA to GBR online?

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

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

The best way to change KOAs 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 KOA to GBR.

How can I automate KOA 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 KOA 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 koa to gbr converter for batch processing.

What else can I do with reaConverter?

Convert DICOM imagesResize pictureConvert GIS filesCopy EXIF dataSet file date

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