Click the "Select File" button above, and choose your FRJ file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert FRJ to another file type
To convert FRJ projects to another format, you need FreeForm-J or other Developer software.
Convert a file to FRJ
To convert other file formats to the "GUI Layout File" file type, you need software like FreeForm-J or a similar tool.
About FRJ files
An .FRJ file is a GUI project file created by FreeForm-J, a visual interface builder designed for the Just BASIC programming language. It stores user-designed forms, layout definitions, and interface elements such as buttons, text boxes, and combo boxes.
You can natively open and edit these files using the FreeForm-J editor, which then compiles them into front-end interfaces for Just BASIC applications.
Since this is a highly niche, proprietary format strictly tied to the Just BASIC ecosystem, the data is not natively readable by modern web browsers or mainstream development tools. Working with .FRJ files outside of FreeForm-J is highly restrictive. If you are migrating a legacy project to a modern framework like Python or C#, you cannot directly import the .FRJ file, creating a major bottleneck for code modernization.
The best approach for migration is to convert or extract the form layout into standard text-based formats like TXT, XML, or JSON to preserve the UI control coordinates and basic properties, though automated translation of the precise visual logic will likely be lost.
Because .FRJ is a closed, proprietary developer format, standard online converters almost always fail to process it. Often, only the original FreeForm-J software can properly read or export the exact form data. If our analysis detects a supported underlying or embedded format, viewing or conversion may still be possible.
Convert.Guru analyzes your FRJ file, detects the exact format, and lets you read the text inside.
FAQ
If you want to convert FRJ file to , you can use FreeForm-J or similar software from the "GUI Form Project File" category. In the File menu, look for Save As… or Export….
To convert files to FRJ, try FreeForm-J or another comparable tool in the "GUI Form Project File" category.
The FRJ 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 FRJ converter.