Convert U-Boot images and audio files (UB) online for free
The converter easily converts your UB U-Boot files to various formats - free and online. No Das U-Boot or other System software needed.
To convert other file formats to the "Bootloader Kernel Image" file type, you need software like Das U-Boot or a similar tool.
The .ub file extension primarily represents a U-Boot Bootable Kernel Image, utilized by the Das U-Boot open-source bootloader for embedded devices. These files, often formatted as a Flattened Image Tree (FIT), package a compiled Linux kernel, a device tree blob (DTB), and sometimes an initial RAM disk into a single file. A small percentage of .ub files are Unsigned Byte Audio files, which contain raw 8-bit PCM audio data without any headers.
To inspect or extract a U-Boot image, embedded developers rely on Linux command-line utilities like dumpimage or mkimage. To open the audio variant, users must use audio software like Audacity to manually import the raw data stream.
Working with .ub files is inherently difficult for average users. U-Boot images are opaque binary blobs that cannot be natively read by standard archive managers like WinRAR or 7-Zip, forcing users to rely on complex Linux environments. The raw audio variant is equally frustrating; because it lacks standard metadata headers, generic media players will completely fail to open it since they cannot detect the sample rate or track length.
For embedded development, convert or extract your .ub file to BIN, IMG, or DTB to analyze the device tree or recompile the kernel. For audio files, convert to WAV for lossless archiving or MP3 for broad playback compatibility. Drag and drop your file to analyze and convert it - free, online, and without installing software on convert.guru.
Use Convert.Guru to open and convert your UB file.
Users also converted XWB, RAN and XGS files.
If you want to convert UB file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use Das U-Boot or similar software from the "Embedded Device Bootloader Image" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to UB, try Das U-Boot or another comparable tool in the "Embedded Device Bootloader Image" 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 UB converter.