Extract text from Unity license files (ULF)
To convert ULF license files to another format, you need Unity or other Settings software.
To convert other file formats to the "License Authorization File" file type, you need software like Unity or a similar tool.
The .ULF file is an XML-based Unity License File used by the Unity game engine to authenticate software licensing. It typically stores details about the user's subscription, offline activation status, and machine hardware ID. Users interact with this file when performing a manual, offline activation of the Unity Editor through the Unity Hub.
While the basic structure is XML, .ULF files are highly specialized and strict. It is a proprietary format tied to a specific machine. Opening it in a standard text editor often reveals a mix of XML tags and unreadable, encrypted cryptographic hash values intended to prevent piracy. Standard online converters fail to process it because it does not represent standard document or image data, and modifying the file manually usually breaks the license authorization.
Converting a .ULF file is generally unnecessary for game development, as Unity requires the exact .ULF extension for activation. However, IT administrators or developers might need to convert or extract the human-readable XML data into TXT, XML, or JSON to audit license deployments or document machine ID configurations. Data like the actual license keys remain encrypted and will not become suddenly readable after conversion.
This file format is difficult to open or convert functionally outside of the Unity ecosystem. Because it is a closed, proprietary authorization file, only the original software can properly read or validate the data. However, you can just drag and drop your file to identify the format, view it, and convert it when possible using our tool. Since the underlying format is XML, convert.guru can still inspect the file and show the raw text or internal content.
Convert.Guru analyzes your ULF file, detects the exact format, and lets you read the text inside.
Users also converted SVD, UTD and BUNDLES files.
If you want to convert ULF file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use Unity or similar software from the "Game Engine Authorization" 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 ULF, try Unity or another comparable tool in the "Game Engine Authorization" 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 ULF converter.