Preparing your Gerber files for a clean, fast quote

Our instant analyser reads your uploaded archive to detect layer count and board dimensions. To get a clean read, export actual Gerber files — not your CAD project.

A good archive includes your copper layers (e.g. .GTL/.GBL), a board outline layer (.GKO or .GML), soldermask and silkscreen layers, and an Excellon drill file (.TXT). Zip them together and upload the .zip or .rar.

If the analyser can't identify a board outline, it will tell you — you can still set your specs manually and order. When in doubt, export using your EDA tool's "JLCPCB" or standard RS-274X preset.