Extract text from Fitbit OS app packages (FBA)
To convert FBA app packages to another format, you need Fitbit CLI or other Executable software.
To convert other file formats to the "Wearable App Package" file type, you need software like Fitbit CLI or a similar tool.
A .FBA file is a Fitbit OS App Package. It contains the compiled application code, user interface layouts, and digital assets required to install and run apps or clock faces on Fitbit smartwatches, such as the Fitbit Versa, Ionic, and Sense.
These packages are primarily generated and deployed using the official Fitbit CLI (Command Line Interface) or the deprecated Fitbit Studio. The format serves as a distribution container, taking standard web technologies like JavaScript, CSS, and SVG, and compiling them into a proprietary binary structure optimized for low-power wearables.
The main disadvantage of the .FBA format is its strictly proprietary, closed ecosystem. Files are hardware-bound and require a developer account or specific debugging modes to sideload onto a device. Because it relies entirely on Fitbit-specific APIs, a .FBA file is useless on other platforms. You cannot natively install it on an Apple Watch, Garmin device, or an Android phone.
Users typically attempt to convert .FBA files into ZIP or standard archive formats to extract embedded graphical assets, such as PNG icons or SVG watch face elements. Direct conversion into other smartwatch app formats (like Garmin's PRG or Android's APK) is mathematically impossible due to fundamentally different operating systems.
This file format is exceptionally difficult to open or convert because standard archival software cannot parse its proprietary compression and compiled binary structure.
Convert.Guru analyzes your FBA file, detects the exact format, and lets you read the text inside.
Users also converted ZIP, FBM and FB files.
If you want to convert FBA file to FBM, FB, EXE, MSI, APP, DMG, DEB, RPM, PKG, RUN, SH or BAT, you can use Fitbit CLI or similar software from the "Smartwatch Application Package" category. In the File menu, look for Save As… or Export….
To convert JAR, APP, SCR, IPA, COM, AAB, PS1, DMG, VBS, EXE, XAPK or MSI files to FBA, try Fitbit CLI or another comparable tool in the "Smartwatch Application Package" category.
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 FBA converter.