Click the "Select File" button above, and choose your PDE file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert PDE to another file type
To convert your PDE file to another format, you need Processing or other Developer software.
Convert a file to PDE
To convert other file formats to the "Source Code" file type, you need software like Processing or a similar tool.
About PDE files
A .PDE file is primarily a source code sketch created with the Processing Development Environment or older versions of the Arduino IDE. These files contain code written in the Processing language (a dialect of Java) or C++, used for creating visual arts, prototypes, and electronic projects. While powerful for development, .PDE files are plain text documents masked by a proprietary extension, meaning they often fail to open in standard text editors or web browsers without manual association. A common problem arises for Arduino users: versions of the IDE prior to 1.0 used .PDE, while modern versions use INO, creating compatibility confusion for legacy projects. Additionally, users sharing code for academic submission or documentation often find raw source files unsuitable due to formatting issues. To resolve these constraints, we recommend converting .PDE to PDF for uneditable, formatted archiving and printing. For universal editing across any platform, convert to TXT or Java. For upgrading legacy Arduino projects, simply renaming or converting the content to INO allows immediate use in modern environments.
Convert.Guru analyzes your PDE file, detects the exact format, and lets you read the text inside.
If you want to convert PDE file to ODE, JS, TS, PY, JAVA, CPP, C, CS, PHP, RB, GO or RS, you can use Processing or similar software from the "Source Code Sketch" category. In the File menu, look for Save As… or Export….
To convert SH, PY, KT, PS1, SWIFT, LUA, PL, JAVA, SCALA, JS, VBS or TS files to PDE, try Processing or another comparable tool in the "Source Code Sketch" category.
The PDE 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 PDE converter.