Gerber Viewer

View PCB Gerber files directly in your browser. Inspect copper layers, solder masks, and drill patterns. No software installation required for quick PCB inspection.

Drop Gerber files here or click to browse

.gbr, .ger, .gtl, .gbl, .drl files (multiple allowed)

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Frequently Asked Questions

Gerber (RS-274X) is the standard format for PCB (Printed Circuit Board) manufacturing. Each file represents one layer: copper traces, solder mask, silkscreen, or drill locations.

Extended Gerber (RS-274X) with embedded apertures. Older RS-274D format requires separate aperture files and is not supported.

Any Gerber layer: top/bottom copper, solder mask, paste mask, silkscreen, board outline. Each file is one layer; load multiple for full board view.

Basic Excellon drill files can be viewed. They show as drill hole locations overlaid on the board. Complex Excellon features may not render.

Yes. All processing happens locally in your browser. Your PCB files never leave your device, protecting your intellectual property.

Export from PCB design software: KiCad, Eagle, Altium, EasyEDA, Fritzing. Choose 'Gerber RS-274X' or 'Extended Gerber' format.

Apertures define shapes for drawing: circles, rectangles, obrounds, polygons. They're like pen tips. RS-274X embeds aperture definitions in the file.

Use zoom and coordinates display to inspect dimensions. For precise measurements, use your PCB design software or dedicated Gerber tools.

Advanced features like macros, step-and-repeat, and some polygon modes may not fully render. Basic traces, pads, and regions should display correctly.

Load multiple Gerber files (copper, mask, silkscreen) and toggle layers to see the complete PCB. Colors are auto-assigned by layer type.

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