Layout handoff / free preflight tool
GDSII Layout Metadata Check
Read GDSII record metadata, units, cells, layer/datatype pairs and unresolved or cyclic cell references without uploading or rewriting the file.
What to provide
Uncompressed GDSII, up to 20 MB in this browser scanner. The optional local gdstk reader also accepts supported OASIS files.
What you get
Library units and precision, cell hierarchy metadata, top cells, layers and structural warnings. Local gdstk adds bounding boxes.
Choose a GDSII file or try the original synthetic example.
No current result. Review inputs, then run the check. Editing an input clears the previous report.
Disclaimer: This tool and its outputs are for reference and preliminary evaluation only, not design, manufacturing, qualification or commercial approval; verify all results with the responsible supplier or engineer.
Original MIT-licensed models, Node CLI, synthetic tests and optional Python readers. No customer files or dependency environment is included. Read the bundled README and third-party notices before use or redistribution.
Source archive SHA256Before using this in a handoff
Not a full GDS grammar certification, PDK layer-map check, geometry viewer, DRC, LVS or tape-out approval.
All built-in examples are synthetic, not product data, customer evidence or supplier commitments. Retain the input revision and review the downloaded report with the responsible provider.