Convert GBR to ICO
Convert GBR to ICO online: the PCB layer artwork drawn at 300 dpi in sharp detail, saved as a 256 × 256 ICO icon. Free, no sign-up.
Drop your GBR files here
Up to 50MB per file.
Conversion Settings
Files are encrypted and auto-deleted after conversion
How to Convert
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Upload your GBR files
Drag and drop or select GBR files from your device. You can upload multiple files at once.
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Configure Output
Choose any available ICO output options, then start the conversion.
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Download ICO files
Once conversion finishes, download your files individually or as a compressed ZIP archive.
Why convert GBR to ICO?
GBR is the Extended Gerber (RS-274X) format that PCB design tools export for each board layer, such as copper, solder mask, silkscreen and board outline. The layer's pads, tracks, fills and outlines are drawn in teal on a white background at 300 dpi, with anti-aliased edges.
ICO output is a 256 × 256 pixel Windows icon: the image is scaled to fit with its proportions kept, and the surrounding space is transparent.
Frequently Asked Questions
How do I convert GBR to ICO?
Drop your GBR file above and press Convert. Our servers render the Gerber layer with gerbv at 300 dpi, producing an anti-aliased PNG that is then encoded in the format you chose. The result is saved as a 256 × 256 ICO icon, ready to download.
What colours does the GBR layer use in the ICO?
The layer's artwork is drawn in teal (#007F73) on a plain white background, which keeps pads, tracks and copper pours clearly visible.
At what resolution is the GBR layer drawn for the ICO?
gerbv, the open-source Gerber viewer from the gEDA project, draws the layer at 300 dots per inch with anti-aliasing, so every inch of board becomes 300 pixels before the ICO is encoded.
Which part of the GBR becomes the ICO icon?
The whole image is used, fitted inside the 256 × 256 square with its proportions kept and a transparent surround.
What size is the ICO made from a GBR file?
The icon is 256 × 256 pixels, the largest standard Windows icon size. The image is fitted inside the square with its proportions kept and a transparent surround, stored as a PNG-compressed icon.
Is my .gbr file kept private?
Your file is uploaded over an encrypted connection, converted on our servers and deleted automatically within 24 hours. We never read, share or keep your files, and no account is needed.