Extract text from Lua bytecode files (LUB)
To convert LUB Bytecode files to another format, you need Lua or other Developer software.
To convert other file formats to the "Compiled Bytecode Script" file type, you need software like Lua or a similar tool.
A .LUB file is a compiled bytecode script created from the Lua programming language. Developers compile standard human-readable LUA files into .LUB files to increase execution speed and obfuscate game logic. This format is heavily used in game development, most notably by Gravity Corporation for the MMORPG Ragnarok Online, where it stores client-side configurations, item databases, and skill scripts.
The main disadvantage of the .LUB format is that it is a compiled binary. You cannot open it with a standard text editor - it will only display gibberish. Furthermore, Lua bytecode is highly version-dependent. A file compiled with Lua 5.1 will not run or decompile correctly on a Lua 5.3 interpreter. To modify the logic, you must reverse-engineer the bytecode back into plain text.
To edit the script, convert the file back to LUA. For reviewing extracted data structures (like game item tables), convert to JSON or TXT. Drop your file here to view and convert it securely right in your browser.
Convert.Guru analyzes your LUB file, detects the exact format, and lets you read the text inside.
Users also converted LUA, TXT, TMP, PDF, HKS, SCPT and TS4SCRIPT files.
If you want to convert LUB file to LUA, you can use Lua or similar software from the "Compiled Script Execution" category. In the File menu, look for Save As… or Export….
To convert files to LUB, try Lua or another comparable tool in the "Compiled Script Execution" 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 LUB converter.