Scheme-it is an online schematic and diagramming tool that allows you to create and share technical layouts using your web browser. The tool includes a full set of schematic symbols for building electrical circuits as well as an integrated Digi-Key catalog that supports the insertion of product images and product photos into your designs.
The tool also includes an integrated bill of materials (BOM) manager that allows you to associate each generic symbol or manufacturer component with a Digi-Key part number.