PCB123 v4 advanced software design tool has an intuitive CAD interface for freedom and flexibility in schematic and layout editing. Features 500,000 new parts, improved search functionality with complete access to parts libraries, automated BoM, data importer that imports DXF files from mechanical CAD tools. Integrates DRC/DfM rules into the software. Offers research, availability and pricing for each component registered in the Digi-Key database. Is free and requires no license.

Sunstone Circuits, sunstone.com