Can I drop a folder of Gerber files?

Browsers can't accept a raw folder drop, so zip the fabrication folder first (the same zip your PCB house wants). We detect the ZIP signature, extract everything that looks like a Gerber or drill file, and composite all the layers into a single board view.

Which fabricator naming conventions are supported?

pcb-stackup's filename heuristics cover KiCad, Eagle (including OSH Park / PCBNG), Altium, Allegro, DipTrace, gEDA, and OrCAD. The layer panel shows what each file was classified as so you can flip any misidentified layer off and confirm the rest still composite correctly.

Do you draw drill holes?

Yes — drop your Excellon .drl / .xln file in the same zip and the holes will appear in the board render as transparent cutouts in the copper.

Why does the board look distorted or empty?

Usually the board outline (Edge.Cuts / .gm1 / .gko) is missing or has gaps. Include the outline layer in your zip; if your CAD tool leaves micro-gaps, the renderer fills outline gaps below 0.011 mm automatically.

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Open Gerber files

PCB fabrication files (RS-274X) with stackup compositing.

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About Gerber

PCB fabrication files (RS-274X) with stackup compositing.

Most PCB shops accept Gerber RS-274X as a folder of layer files — copper, soldermask, silkscreen, paste, board outline, plus an Excellon drill file. Drop the zipped fabrication package here and we extract every supported layer, identify its role from the filename, and composite the whole thing into top and bottom SVG renders using pcb-stackup. Toggle individual layers, flip between sides, and switch between millimetre and inch units to sanity-check your board before you send it out for manufacturing.

FAQ

Can I drop a folder of Gerber files?: Browsers can't accept a raw folder drop, so zip the fabrication folder first (the same zip your PCB house wants). We detect the ZIP signature, extract everything that looks like a Gerber or drill file, and composite all the layers into a single board view.
Which fabricator naming conventions are supported?: pcb-stackup's filename heuristics cover KiCad, Eagle (including OSH Park / PCBNG), Altium, Allegro, DipTrace, gEDA, and OrCAD. The layer panel shows what each file was classified as so you can flip any misidentified layer off and confirm the rest still composite correctly.
Do you draw drill holes?: Yes — drop your Excellon .drl / .xln file in the same zip and the holes will appear in the board render as transparent cutouts in the copper.
Why does the board look distorted or empty?: Usually the board outline (Edge.Cuts / .gm1 / .gko) is missing or has gaps. Include the outline layer in your zip; if your CAD tool leaves micro-gaps, the renderer fills outline gaps below 0.011 mm automatically.

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