Click the "Select File" button above, and choose your CPJ file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert CPJ to another file type
To convert CPJ Projects to another format, you need Caddy++ or other Cad software.
Convert a file to CPJ
To convert other file formats to the "Schematic Project File" file type, you need software like Caddy++ or a similar tool.
About CPJ files
A .CPJ file is a fragmented extension most commonly used as an Electrical Engineering Project file by Caddy++. In this context, it stores complex schematic diagrams and wiring logic using an internal standard JetDB architecture. Secondary uses include game character data for LEGO games and Duke Nukem Forever, CD authoring projects for Roxio WinOnCD, and drive configurations for Control Techniques CTSoft. The primary disadvantage of the .CPJ format is its proprietary, closed nature. A Caddy++ project requires specialized, licensed CAD software to render properly. It is entirely unsupported by web browsers or generic document viewers, trapping your electrical data inside a closed ecosystem. If you do not own the original software, viewing or editing the schematic is incredibly frustrating. Converting a .CPJ file heavily depends on its specific origin. CAD projects should ideally be exported to PDF or DXF directly within the native application. Because this is a closed, proprietary format, standard online converters fail to process it. They lack the specialized rendering engines required to interpret vector lines and read JetDB relational tables. If our analysis detects a supported underlying or embedded format, like a Microsoft Access database or a RIFF wrapper, viewing raw tables or converting the raw data may still be possible.
Convert.Guru analyzes your CPJ file, detects the exact format, and lets you read the text inside.
If you want to convert CPJ file to , you can use Caddy++ or similar software from the "Electrical Engineering Project File" category. In the File menu, look for Save As… or Export….
To convert files to CPJ, try Caddy++ or another comparable tool in the "Electrical Engineering Project File" category.
The CPJ Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our CPJ converter.